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  1. #1
    Junior Member Two Rings
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    Buying dilemma: A6 or S6?

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    Hey folks, I'm trying to decide between buying an A6 or S6. This may be a no-brainer on the surface, but hear me out...

    I had an 2014 S5 that I absolutely loved. Loved the responsiveness of the supercharged engine, the DSG, and absolutely loved the sport differential. I test drove 6 or 7 different S5s in different configurations when I was shopping, and I could absolutely tell the difference between the sport diff equipped and non sport diff cars. I also bought my first non-manual transmission... enjoyed the DSG more than the 6MTs I drove.

    Got rid of the S5 for a whole bunch of reasons, and regret it every time I get into my car. It's time to get back to Audi...

    Here are my general thoughts, and why this is even a question:
    - I really want the sport differential. I could get an A6 Competition, but there are none local to me and they're almost as expensive as the S6.
    - I enjoy the drivability of the 3.0T. I had a 2006 Passat 2.0T 6MT with an APR Stage 2 tune, and I felt like half the time I was waiting for the car to warm up or cool down. With the S5 I didn't worry so much about getting right into it, and I'm worried the 4.0T needs more coddling especially on shorter trips.
    - I really enjoy going 0-60 fast. If I buy an A6 I will take 100% of the savings from the price difference and plow it into upgrades.

    I'm not overly worried about the cost differences between the 2 cars. I plan to keep this car for a while, I'll end up modding whatever I get. I feel the cost will approach the same over time, as modding seems to be a never ending money sink :)

    I've read a lot of the forum over the past few weeks and I've been very impressed with what everyone is doing to their cars. I've seen some fantastic examples of the A6 and S6. I thought about just PMing p3u and asking why he went A6 instead of S6, but instead I'm here with this thread...

    So send me your thoughts! I appreciate you taking the time to read.

  2. #2
    Senior Member Three Rings mrdouble99's Avatar
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    Montreal

    i have a S6 and if i would have to do it again with what i know now, it would be a A6 2017 competition package.

    Not that i don't like the S6, but the ticking time bomb under the hood is anoying and as much as i love the air suspension, as much as it scare me for the future if i have top replace something.
    --------------------------------------------------------------------------------------
    Mythos Black Metallic 2018 Audi S6 current

    Moonlight blue 2015 Audi S6 sold

  3. #3
    Veteran Member Three Rings WatchMeSpend's Avatar
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    2016 A6 3.0T Technik S-Line
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    Toronto/Ontario

    Since the A6 is a much bigger car, do you think the sport differential will be felt...

    https://www.audizine.com/forum/showt...-daily-driving

    To me it's simple. If you don't want to deal with extra toys, don't buy an S6. Same with every car really. I went A6 S-Line. Good old dumb suspension, turbos have always made great power and been finicky, although much better today. I didn't want to deal with DSG servicing. The supercharger on the car is the descendant of my 1990 Thunderbird SC and I and people that raced and modded the car had zero problems with a late 80s supercharger.

    I don't have long runs to open the car up, so I need to find my joy in the 1st-2nd gear range. Currently running Stage 2 DP and will mod the trans. Since the S6 is a hot looking ride but more expensive, I got a newer A6 that has the facelift with faster MMI and it came loaded with 20" wheels. At no time am I sorry I didn't get an S6. I don't really worry at all about servicing it.

    Just need a rear swaybar to keep porky from leaning in the corners. My last 2006 A6 S-line with a 4.2 had sport buckets and would out handle the 2016, but the 2016 is so much faster, it's even more dangerous in a corner. The sport bucket were NOT welcome on long trips. Felt like you were sitting on a catcher's mitt.

  4. #4
    Veteran Member Three Rings DC Dawg's Avatar
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    Quote Originally Posted by WatchMeSpend View Post
    Since the A6 is a much bigger car...
    HUH?
    2009 A6 Avant 3.0T | Garnet Red / Black (1 of 9 in the US) Prestige | Cold
    EPL Stage 1 | Custom Exhaust w/ Quad Tips | ST Coilovers | H&R RSB | OEM 20" SQ5 Peelers | Porsche Macan Brakes | Roc-Euro | RS6ish Grill | C7 Shifter | EBay Puddle Lights | Euro Corner Markers | Ebay S6 Rear Valence | "AJ" Chrome Delete | OEM S6 seats | OEM S6 Door Blades | OEM S6 Grab Handles | OEM S6 Euro Sun Visors

  5. #5
    Veteran Member Three Rings WatchMeSpend's Avatar
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    2016 A6 3.0T Technik S-Line
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    Quote Originally Posted by DC Dawg View Post
    HUH?
    Than an S5 with a sport differential....

  6. #6
    Senior Member Two Rings
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    I would for sure go with the S6. I see the benefits of a supercharger over the turbos but the V8 sound is worth it. Plus perhaps I’m wrong but there seems to be more potential in the V8TT.

  7. #7
    Veteran Member Three Rings DC Dawg's Avatar
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    Gotcha I was thinking you were comparing A6 abs S6 LOL


    Sent from my iPhone using Tapatalk
    2009 A6 Avant 3.0T | Garnet Red / Black (1 of 9 in the US) Prestige | Cold
    EPL Stage 1 | Custom Exhaust w/ Quad Tips | ST Coilovers | H&R RSB | OEM 20" SQ5 Peelers | Porsche Macan Brakes | Roc-Euro | RS6ish Grill | C7 Shifter | EBay Puddle Lights | Euro Corner Markers | Ebay S6 Rear Valence | "AJ" Chrome Delete | OEM S6 seats | OEM S6 Door Blades | OEM S6 Grab Handles | OEM S6 Euro Sun Visors

  8. #8
    Veteran Member Three Rings DC Dawg's Avatar
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    So besides the sport diff , isn’t the A6 comp just wheels and suspension and some blacked out trim?


    Sent from my iPhone using Tapatalk
    2009 A6 Avant 3.0T | Garnet Red / Black (1 of 9 in the US) Prestige | Cold
    EPL Stage 1 | Custom Exhaust w/ Quad Tips | ST Coilovers | H&R RSB | OEM 20" SQ5 Peelers | Porsche Macan Brakes | Roc-Euro | RS6ish Grill | C7 Shifter | EBay Puddle Lights | Euro Corner Markers | Ebay S6 Rear Valence | "AJ" Chrome Delete | OEM S6 seats | OEM S6 Door Blades | OEM S6 Grab Handles | OEM S6 Euro Sun Visors

  9. #9
    Veteran Member Four Rings A6sport's Avatar
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    4L Q7 3.0T Stage II, D4 A8L 4.2, A5 2.0t APR stage III, MK1 TT 225 APR stage I 2022 Q8 3.0T Stock
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    Quote Originally Posted by DC Dawg View Post
    So besides the sport diff , isn’t the A6 comp just wheels and suspension and some blacked out trim?


    Sent from my iPhone using Tapatalk
    a few more ponies from the factory, Super Sport seats, FB steering wheel, red stitching, red calipers. It's a "real" S line car.
    2022 Q8 S line Prestige Stock
    2015 Q7 S line Sport+ APR Stage II DP
    2012 A7Plus APR Stage II+ UC
    2012 A8L 4.2
    2010 A5 2.0T APR K04 Stage III
    2002 TT 225 Roadster APR Stage I

    Still own them all...

  10. #10
    Junior Member Two Rings
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    Quote Originally Posted by WatchMeSpend View Post
    Since the A6 is a much bigger car, do you think the sport differential will be felt...

    https://www.audizine.com/forum/showt...-daily-driving
    Great thread, thanks for the link! I felt the sport diff when it was wet, and when cornering under significant acceleration like turning from a side street to a main street and entering the flow of traffic. Vancouver is very rainy and the drivers here are unpredictable, I appreciated the way the S5 behaved in those conditions. I'll have to test a couple of non-sport diff A6 in the wet and see what the behaviour is like...

    Quote Originally Posted by A6sport View Post
    a few more ponies from the factory, Super Sport seats, FB steering wheel, red stitching, red calipers. It's a "real" S line car.
    I love the steering wheel and seats in the competition (and in the S6). There is something about the connection to the car through the seat and wheel that makes me really happy!

    Thanks for all the thoughts so far!
    2103 S6 Estoril Blue

  11. #11
    Veteran Member Four Rings Alabama's Avatar
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    C7 S6
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    Quote Originally Posted by Roboticus View Post
    I'm trying to decide between buying an A6 or S6.
    I don't recall any AZ folk who own both at the same time and compare. From my AZ reading, certainly many A6 owners do upgrades and seem very happy. Same for S6. If you are good at DIY, some of your concern about the S6 is reduced as even if the turbos fail, you can replace/upgrade at reasonable cost. If you are buying new, then there is a greater price difference than if you buy CPO. If you plan to custom tune the car, then S6 with the option of DS1 has many advocates. Maybe the deciding factor will be whether you prefer Seville or Tango Red!
    2014 CPO S6, SunTek PPF (applied by CGS Vinyl), BlackVue dashcam (installed by Radio Active), Hawk Brake Pads/Zimmermann Rotors/Goodridge SS Brake Lines, H&R sway bars, Alu Kreuz, 034 Drivetrain Mount Inserts, SRM Driveshaft Carrier (mechanical/maintenance by Franklin Automotive)

  12. #12
    Veteran Member Three Rings DC Dawg's Avatar
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    Quote Originally Posted by A6sport View Post
    a few more ponies from the factory, Super Sport seats, FB steering wheel, red stitching, red calipers. It's a "real" S line car.
    Got it. Yeah I looked it up , the HP is meaningless , less than 10 but the seats + steering wheel are a nice upgrade. I was trying to find out how many were produced but haven’t been able to. Any idea ? None for sale nationwide.


    Sent from my iPhone using Tapatalk
    2009 A6 Avant 3.0T | Garnet Red / Black (1 of 9 in the US) Prestige | Cold
    EPL Stage 1 | Custom Exhaust w/ Quad Tips | ST Coilovers | H&R RSB | OEM 20" SQ5 Peelers | Porsche Macan Brakes | Roc-Euro | RS6ish Grill | C7 Shifter | EBay Puddle Lights | Euro Corner Markers | Ebay S6 Rear Valence | "AJ" Chrome Delete | OEM S6 seats | OEM S6 Door Blades | OEM S6 Grab Handles | OEM S6 Euro Sun Visors

  13. #13
    Veteran Member Four Rings gk1's Avatar
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    IMHO if you prefer 0-30ish acceleration then get the A6. For everyday driving the 4.0T does not get off the line as well without using launch control as the 3.0T+ZF in everyday use. Don't get me wrong the S6 moves but in everyday traffic the extra mass, turbos, and s-tronic make for a slight slower normal acceleration off a traffic light. 30-120, sure, then S6 all the way. At least that is my 2c and this is comparing back-to-back my Stage1 S6 to my stock SQ5 which are identical in weight. You want a big theatrical launch and "get-you-in-trouble" speed then the S6 is great, you want useable short term acceleration then the 3.0T is IMO better.
    Best example I can offer is my stock SQ5 (remember same weight as an S6) just nailing the throttle gets a 2.0s 60ft time and is at 80ish mph by the 1/8th mile in 8.8s. The S6 without LC has the same 2.0s 60ft time and is only slightly faster at 85mph by the 8th in 8.3s. And a tuned 3.0T will obviously be much better.
    2023 e-tron GT Daytona Gray
    Perf, Leather, Exec

    2015 S6 Quartz Gray
    2014 SQ5 Glacier White
    2012 S4 S-Tronic Monsoon, Stage II [email protected] 4275lbs
    2008 A6 3.2Q S-Line Daytona
    2007 A4 2.0T S-Line Ice Silver
    2001 S4 Nogaro Blue, Stage I [email protected] 3944lbs

  14. #14
    Veteran Member Three Rings Burkeomatic's Avatar
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    14 A8L 4.0T, 96 Corolla Wagon
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    I'll weigh in as a noob to audis who just made this decision. I went with the A7. The way I looked at it, I was going to have a big ticket item on the horizon either way. The turbos for the s7 or the timing chain for the a7.

    The a7 was less expensive, and had less stuff to break. I was able to weasel my way into getting the timing chain parts upgraded under warranty too.

    Keeping an eye on the classified section allowed me to get a stage 2 epl tune, along with tcu tune, and an upper and lower pulley set for around 1500 bucks. Now all I need is the merc racing supercharger cooler and I will be solidly in s7 territory in a straight line with some coin left over for e85 upgrades.

    I do miss out on getting the v8 and the ds1 tune and having flex fuel capabilities, but I know my powertrain will be rock solid.

    Plus, I have never owned a supercharged car and I love the power delivery and the whine from the intake I fabbed up. I have owned multiple turbocharged cars including a miata that made 350whp on ethanol (that was a whole lot of car) and thought I would do the supercharger thing for a while.

    At the end of the day a a6/a7 with about 3 grand in mods will outperform 90% of what you run across in the wild.

  15. #15
    Veteran Member Three Rings WatchMeSpend's Avatar
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    2016 A6 3.0T Technik S-Line
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    Quote Originally Posted by gk1 View Post
    IMHO if you prefer 0-30ish acceleration then get the A6. For everyday driving the 4.0T does not get off the line as well without using launch control as the 3.0T+ZF in everyday use. Don't get me wrong the S6 moves but in everyday traffic the extra mass, turbos, and s-tronic make for a slight slower normal acceleration off a traffic light. 30-120, sure, then S6 all the way. At least that is my 2c and this is comparing back-to-back my Stage1 S6 to my stock SQ5 which are identical in weight. You want a big theatrical launch and "get-you-in-trouble" speed then the S6 is great, you want useable short term acceleration then the 3.0T is IMO better.
    Best example I can offer is my stock SQ5 (remember same weight as an S6) just nailing the throttle gets a 2.0s 60ft time and is at 80ish mph by the 1/8th mile in 8.8s. The S6 without LC has the same 2.0s 60ft time and is only slightly faster at 85mph by the 8th in 8.3s. And a tuned 3.0T will obviously be much better.
    Here is an A6 "big theatrical launch." Some folks might want to lower their launch RPM...

    https://www.youtube.com/watch?v=2dao4-xDKn8

  16. #16
    Veteran Member Four Rings gk1's Avatar
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    Quote Originally Posted by WatchMeSpend View Post
    Here is an A6 "big theatrical launch." Some folks might want to lower their launch RPM...

    https://www.youtube.com/watch?v=2dao4-xDKn8
    Impressive. That's a RoW A6 with S-tronic and LC.
    2023 e-tron GT Daytona Gray
    Perf, Leather, Exec

    2015 S6 Quartz Gray
    2014 SQ5 Glacier White
    2012 S4 S-Tronic Monsoon, Stage II [email protected] 4275lbs
    2008 A6 3.2Q S-Line Daytona
    2007 A4 2.0T S-Line Ice Silver
    2001 S4 Nogaro Blue, Stage I [email protected] 3944lbs

  17. #17
    Veteran Member Four Rings esemes's Avatar
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    whirlpool cabrio washer and dryer
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    i decided on the S6 and searched for a little over 2 months. it is not difficult to service/ address the "issues" that are documented on this forum.

    That said, I replaced the entire pcv system and the oil strainer.

    I am now stage2 APR ECU, TCU, and with redstar downpipes, rs7 elbows/airbox, and a great smile on my face.

    Oil changes are the insurance.

    I have a list of other things, but this is the must, IMO.
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    2016 S6 - sport - optx- atlas - AE nardo

  18. #18
    Veteran Member Four Rings Alabama's Avatar
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    C7 S6
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    Quote Originally Posted by gk1 View Post
    IMHO if you prefer 0-30ish acceleration then get the A6. For everyday driving the 4.0T does not get off the line as well without using launch control as the 3.0T+ZF in everyday use. Don't get me wrong the S6 moves but in everyday traffic the extra mass, turbos, and s-tronic make for a slight slower normal acceleration off a traffic light. 30-120, sure, then S6 all the way. At least that is my 2c and this is comparing back-to-back my Stage1 S6 to my stock SQ5 which are identical in weight. You want a big theatrical launch and "get-you-in-trouble" speed then the S6 is great, you want useable short term acceleration then the 3.0T is IMO better.
    Best example I can offer is my stock SQ5 (remember same weight as an S6) just nailing the throttle gets a 2.0s 60ft time and is at 80ish mph by the 1/8th mile in 8.8s. The S6 without LC has the same 2.0s 60ft time and is only slightly faster at 85mph by the 8th in 8.3s. And a tuned 3.0T will obviously be much better.
    Interesting distinction for driving in a straight line. Any thoughts about the limited slip diff (which OP likes) on the S6 as an important feature, or other differences in handling?
    2014 CPO S6, SunTek PPF (applied by CGS Vinyl), BlackVue dashcam (installed by Radio Active), Hawk Brake Pads/Zimmermann Rotors/Goodridge SS Brake Lines, H&R sway bars, Alu Kreuz, 034 Drivetrain Mount Inserts, SRM Driveshaft Carrier (mechanical/maintenance by Franklin Automotive)

  19. #19
    Senior Member Three Rings hrpfg2's Avatar
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    Quote Originally Posted by DC Dawg View Post
    Got it. Yeah I looked it up , the HP is meaningless , less than 10 but the seats + steering wheel are a nice upgrade. I was trying to find out how many were produced but haven’t been able to. Any idea ? None for sale nationwide.


    Sent from my iPhone using Tapatalk
    I don’t have the total number produced but I was told by AOA that I have the 1 of 16 in Nardo gray. I know that’s probably not saying much..

  20. #20
    Veteran Member Four Rings gk1's Avatar
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    Quote Originally Posted by Alabama View Post
    Interesting distinction for driving in a straight line. Any thoughts about the limited slip diff (which OP likes) on the S6 as an important feature, or other differences in handling?
    If you corner hard and accelerate, yes, you can feel the sport diff. How often you do that is dependent on the driver. The S6 is not really a canyon carver, but is not bad for what it is (large sedan). The SD helps in that respect. Since the A6 would be lighter that will only help in the corners. And the steel springs in the A6 (or aftermarket) are generally better in the corners than the comfort of the air springs...even in dynamic mode. I can't directly compare the SQ5 without SD to the S6 in handling since it is a more top-heavy SUV but I can't say I miss the SD on the SQ5 as I push it less than my S6 but it does handle great for an SUV, and one less thing to break down the road. Ha.
    2023 e-tron GT Daytona Gray
    Perf, Leather, Exec

    2015 S6 Quartz Gray
    2014 SQ5 Glacier White
    2012 S4 S-Tronic Monsoon, Stage II [email protected] 4275lbs
    2008 A6 3.2Q S-Line Daytona
    2007 A4 2.0T S-Line Ice Silver
    2001 S4 Nogaro Blue, Stage I [email protected] 3944lbs

  21. #21
    Junior Member Two Rings
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    Thanks for all the replies so far.

    Yesterday I drove an A7 Competition and A6 Technik back to back (ish), both were way more fun than I thought they'd be. I expected to be disappointed after driving the S6, but the entertainment factor was there. Some observations:
    - The ZF8 has criminally low shift points, even in sport / dynamic.
    - The steering on the A7 was almost too sensitive. I didn't have time to mess with it, will need to look into it further.
    - The A7 competition package steering wheel was fantastic. The seats were fine.
    - The A7 felt beat up. Wind noise from the driver's side, door did not open or close with the assurance I expect from Audi. Interior finishings felt like they'd worn worse than expected for a car with only 37k kms on it.
    - Both cars felt reasonably light on their feet, much lighter than my similarly-weighted car.
    - The A6 cooling function was aggressive. I've read on here that it's ineffective, I was pleasantly surprised (though it is basically winter in Canada so, not exactly tough to keep up with the temps).
    - The overhead camera function is seriously cool. Never seen that before, definitely want it.

    Conclusions so far:
    - the A7 is getting a closer look. There are a few available in my area with seating for 5, I'm going to go drive one
    - the B8.5 S4 is officially off the list. Too much cool tech in the C7 A6/7
    - I need to price out a ZF8 TCU tune...

    It feels like I have a lot more possibilities. I was stressed there was only one S6 available for the $ I am willing to spend, it now seems a lot more realistic that I will find something I like in either the S or A flavour.

    Now to find something in blue...
    2103 S6 Estoril Blue

  22. #22
    Veteran Member Four Rings f4m0u5's Avatar
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    Quote Originally Posted by Roboticus View Post
    Thanks for all the replies so far.

    Yesterday I drove an A7 Competition and A6 Technik back to back (ish), both were way more fun than I thought they'd be. I expected to be disappointed after driving the S6, but the entertainment factor was there. Some observations:
    - The ZF8 has criminally low shift points, even in sport / dynamic.
    - The steering on the A7 was almost too sensitive. I didn't have time to mess with it, will need to look into it further.
    - The A7 competition package steering wheel was fantastic. The seats were fine.
    - The A7 felt beat up. Wind noise from the driver's side, door did not open or close with the assurance I expect from Audi. Interior finishings felt like they'd worn worse than expected for a car with only 37k kms on it.
    - Both cars felt reasonably light on their feet, much lighter than my similarly-weighted car.
    - The A6 cooling function was aggressive. I've read on here that it's ineffective, I was pleasantly surprised (though it is basically winter in Canada so, not exactly tough to keep up with the temps).
    - The overhead camera function is seriously cool. Never seen that before, definitely want it.

    Conclusions so far:
    - the A7 is getting a closer look. There are a few available in my area with seating for 5, I'm going to go drive one
    - the B8.5 S4 is officially off the list. Too much cool tech in the C7 A6/7
    - I need to price out a ZF8 TCU tune...

    It feels like I have a lot more possibilities. I was stressed there was only one S6 available for the $ I am willing to spend, it now seems a lot more realistic that I will find something I like in either the S or A flavour.

    Now to find something in blue...
    The tcu tune will really change evrything . and even a stage 1 tune. stick with over 2016 if u can . stage 1 crec keeps up with thr older motor with stage 2 single pulley from the times ive seen. and have better tech/ looks.

    my only regret was getting an a6 vs an a7. now really want a a7.

    tcu tune is hp tuners cable+ credits ($499)and then price for the tune($200 to 500 tuner dependant)

    my current single pulley non crec(2013) is pulling 3.8 seconds 0 to 60mph and 11.9 1/4 mile

  23. #23
    Veteran Member Three Rings DC Dawg's Avatar
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    Quote Originally Posted by hrpfg2 View Post
    I don’t have the total number produced but I was told by AOA that I have the 1 of 16 in Nardo gray. I know that’s probably not saying much..
    What that says to me is: you a rare and bad ass car. I have 1 of 9 Garnet Red C6.6 Avants (out 238 total for 09 i think)
    2009 A6 Avant 3.0T | Garnet Red / Black (1 of 9 in the US) Prestige | Cold
    EPL Stage 1 | Custom Exhaust w/ Quad Tips | ST Coilovers | H&R RSB | OEM 20" SQ5 Peelers | Porsche Macan Brakes | Roc-Euro | RS6ish Grill | C7 Shifter | EBay Puddle Lights | Euro Corner Markers | Ebay S6 Rear Valence | "AJ" Chrome Delete | OEM S6 seats | OEM S6 Door Blades | OEM S6 Grab Handles | OEM S6 Euro Sun Visors

  24. #24
    Veteran Member Four Rings Alabama's Avatar
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    C7 S6
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    Birmingham Alabama

    Quote Originally Posted by Roboticus View Post
    Now to find something in blue...
    If all else fails, vinyl wrap! Don't forget when buying used, it's not generic A6 versus generic A7, but specific car versus specific car.
    2014 CPO S6, SunTek PPF (applied by CGS Vinyl), BlackVue dashcam (installed by Radio Active), Hawk Brake Pads/Zimmermann Rotors/Goodridge SS Brake Lines, H&R sway bars, Alu Kreuz, 034 Drivetrain Mount Inserts, SRM Driveshaft Carrier (mechanical/maintenance by Franklin Automotive)

  25. #25
    Veteran Member Four Rings christianb5s4's Avatar
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    For me personally, I went through this same decision process before picking up my 2016 A6 after test driving both (granted I have a 600whp B5 S4 for my speed kicks). I do not regret my choice at all and have added some small details that made it closer to some things I really like about the S cars. Keep in mind my experience is the C7.5 with the CREC motor and prestige package. I've added stuff like Valcona leather S car center console, door pulls, going APR stage one tomorrow, upgraded to Michelin PS4S, etc. Really love this car.

    Personally I highly recommend getting the facelift regardless of if you go A or S.

    S6 Pros:
    - V8 power, torque and sound
    - Air suspension
    - Power delivery
    - Nicer interior
    - Better brakes

    S6 Cons:
    - Cost of maintenance (turbos, DSG issues at higher mileage, etc.)
    - Sport diffs have been known to fail at higher power levels
    - If driving a lot of miles, fuel economy is significantly worse

    A6 Pros:
    - Bulletproof drivetrain
    - Easily quick enough especially once tuned
    - Surprisingly good fuel economy (easily low to mid 30mpg on highways)
    - Very refined
    - Personally prefer the ZF8 over DSG
    - Overall better daily driver

    A6 Cons:
    - Will never have the power potential of the V8TT
    - Doesn't sound nearly as nice
    - S-line suspension is ok, however not anywhere near having the versatility of air suspension
    Imola 2001 Stage 3 S4: 324K - 157mph 1/2 mile - 543whp/530ftlbs Mustang Dyno - Built BEL Block - RS4 cams/intake - TTE600s - Ringer Racing Stage 5 - Etspec - SRM V3 Intercoolers - AA built trans - 4:1 Diff - Vast cooler - JHM Trio - 034 - H&R Coilovers - OZ Racing - SRM/SSAC exhaust
    2024 M3 Comp xDrive
    2016 A6 prestige w/ s-line, APR Stg 1, Melen TCU, PS4S, valcona S6 interior parts

  26. #26
    Junior Member Two Rings
    Join Date
    Apr 04 2016
    AZ Member #
    371330
    Location
    Vancouver, BC

    So I have 2 strong S6 candidates:

    2017 S6 Technik 81,000kms
    Daytona Grey / Black
    Carbon Atlas
    B&O
    Sport Differential
    HUD
    LED headlights
    1 year Audi CPO, no audi care

    2013 S6 89,000kms
    Glacier White Metallic / Black
    Carbon Atlas
    Sport Diff (standard in 2013)
    HUD
    LED Headlights
    20" Rotor wheels


    Similar options, similar mileage (kilometerage?), but the 2013 is $13k cheaper than the 2017.

    $13k more than covers SRM turbos and a DS1 tune, or is an excellent maintenance fund. I can live without B&O and Android Auto, am I crazy for considering the older car?
    2103 S6 Estoril Blue

  27. #27
    Veteran Member Four Rings widebodyfx's Avatar
    Join Date
    Jan 31 2009
    AZ Member #
    38112
    My Garage
    2016 RS7-P
    Location
    Seattle

    Easy 2016, 13k doesn’t cover an older trans. Not to say the 2013 DSGs are bad, there are more reports of issues with reversing on an incline which is not something that just goes away.

    B&O is also a very nice option.


    Sent from my iPhone using Audizine Forum
    ///TWCompetition 2016 RS7 - 2016 A6 TDI - 2016 S6 - 2007 RS4 - 2022 RSQ8

  28. #28
    Veteran Member Four Rings Alabama's Avatar
    Join Date
    Apr 19 2020
    AZ Member #
    545706
    My Garage
    C7 S6
    Location
    Birmingham Alabama

    Quote Originally Posted by Roboticus View Post
    am I crazy for considering the older car?
    No, but there are trade-offs which you are already considering. Check service records too. A well maintained 2013 from a single owner may be worth the risk, as you note the 2017 is a "high mileage" car for its age. On the other hand, Audi is willing to CPO it, a useful warranty that I believe costs the dealer around $2K to provide. Was your 2014 S5 holding up well?
    2014 CPO S6, SunTek PPF (applied by CGS Vinyl), BlackVue dashcam (installed by Radio Active), Hawk Brake Pads/Zimmermann Rotors/Goodridge SS Brake Lines, H&R sway bars, Alu Kreuz, 034 Drivetrain Mount Inserts, SRM Driveshaft Carrier (mechanical/maintenance by Franklin Automotive)

  29. #29
    Junior Member Two Rings
    Join Date
    Apr 04 2016
    AZ Member #
    371330
    Location
    Vancouver, BC

    Quote Originally Posted by Alabama View Post
    N Was your 2014 S5 holding up well?
    My 2014 S5 was amazing. As my partner put it "Every time you drove that car, rainbows shot out of your ears." I got rid of it because of life reasons, the car was perfect. Took exactly one test drive to sell it privately.
    2103 S6 Estoril Blue

  30. #30
    Veteran Member Four Rings Alabama's Avatar
    Join Date
    Apr 19 2020
    AZ Member #
    545706
    My Garage
    C7 S6
    Location
    Birmingham Alabama

    Quote Originally Posted by Roboticus View Post
    My 2014 S5 was amazing. As my partner put it "Every time you drove that car, rainbows shot out of your ears." I got rid of it because of life reasons, the car was perfect. Took exactly one test drive to sell it privately.
    So that buyer did fine getting an "older" car. There is always a certain amount of chance in buying any used car. Many folk on AZ would encourage addressing the turbo/oil screen on either car, so the 2017 may not save you money in that area. Both cars should have had DSG services performed; check service records. See which seller offers more!
    2014 CPO S6, SunTek PPF (applied by CGS Vinyl), BlackVue dashcam (installed by Radio Active), Hawk Brake Pads/Zimmermann Rotors/Goodridge SS Brake Lines, H&R sway bars, Alu Kreuz, 034 Drivetrain Mount Inserts, SRM Driveshaft Carrier (mechanical/maintenance by Franklin Automotive)

  31. #31
    Junior Member Two Rings
    Join Date
    Apr 04 2016
    AZ Member #
    371330
    Location
    Vancouver, BC

    Okay, so I still haven't found the perfect car, and today I stumbled on a 2016 RS7 with 95k KMs priced similarly to the S6 I'm going to drive this weekend.

    Am I crazy for considering an RS7 with 95,000 KMs? I can afford the inevitable turbo rebuild, I wouldn't have to worry about the DSG, and it looks like the brakes are not carbon ceramic...

    Talk me out of stupidity, please.
    2103 S6 Estoril Blue

  32. #32
    Veteran Member Three Rings
    Join Date
    Feb 21 2017
    AZ Member #
    393769
    Location
    St Louis

    Quote Originally Posted by Roboticus View Post
    Okay, so I still haven't found the perfect car, and today I stumbled on a 2016 RS7 with 95k KMs priced similarly to the S6 I'm going to drive this weekend.

    Am I crazy for considering an RS7 with 95,000 KMs? I can afford the inevitable turbo rebuild, I wouldn't have to worry about the DSG, and it looks like the brakes are not carbon ceramic...

    Talk me out of stupidity, please.
    I should have gotten an RS7 but made the mistake of getting the S6.
    2016 Mythos Black S6 | 20% Tint | APR Exhaust | DS1 Stage 1

  33. #33
    Veteran Member Four Rings Alabama's Avatar
    Join Date
    Apr 19 2020
    AZ Member #
    545706
    My Garage
    C7 S6
    Location
    Birmingham Alabama

    Quote Originally Posted by Roboticus View Post
    Okay, so I still haven't found the perfect car, and today I stumbled on a 2016 RS7 with 95k KMs priced similarly to the S6 I'm going to drive this weekend.

    Am I crazy for considering an RS7 with 95,000 KMs? I can afford the inevitable turbo rebuild, I wouldn't have to worry about the DSG, and it looks like the brakes are not carbon ceramic...

    Talk me out of stupidity, please.
    So long as you like the hatch rather than a trunk and the price is the same, I think most folk here will recommend the RS7. The S6 you listed before had almost as many miles and was only one year newer. If either one is Estoril Blue, then jump!
    2014 CPO S6, SunTek PPF (applied by CGS Vinyl), BlackVue dashcam (installed by Radio Active), Hawk Brake Pads/Zimmermann Rotors/Goodridge SS Brake Lines, H&R sway bars, Alu Kreuz, 034 Drivetrain Mount Inserts, SRM Driveshaft Carrier (mechanical/maintenance by Franklin Automotive)

  34. #34
    Veteran Member Three Rings WatchMeSpend's Avatar
    Join Date
    Mar 19 2019
    AZ Member #
    465231
    My Garage
    2016 A6 3.0T Technik S-Line
    Location
    Toronto/Ontario

    Quote Originally Posted by Roboticus View Post
    Okay, so I still haven't found the perfect car, and today I stumbled on a 2016 RS7 with 95k KMs priced similarly to the S6 I'm going to drive this weekend.

    Am I crazy for considering an RS7 with 95,000 KMs? I can afford the inevitable turbo rebuild, I wouldn't have to worry about the DSG, and it looks like the brakes are not carbon ceramic...

    Talk me out of stupidity, please.
    AFAIK RS7 turbos are more reliable than S6 turbos, 95 000 kms is only 59 0000 miles. The advantage of being Canadian is people treat 100 000kms like its 100 000 miles, which is 161 000 kms. I bought my car 2016 in Oct 2018 with 97 798 kms and I have 110 000kms today. So I wasn't worried about higher kilometers. Modified the car and haven't looked back. One coolant leak was fixed, I think I have another, nut no regrets on the age of the car.

    Why do you want the car? What are you going to do with it? I bought my car with dumb suspension, 8 spd ZF, 3.0T for ease of modification, reliability, looks and I had a monetary limit because I have investment targets I want to achieve and need capital. I have a 6-8 year goal and then I'll sell it. If it still runs great, I'll keep it and keep on investing. I also have a company vehicle. My decision to buy the car was multifaceted.

  35. #35
    Junior Member Two Rings
    Join Date
    Nov 25 2018
    AZ Member #
    431852
    My Garage
    2016 Audi S6 : DS-1 Stage 3 : EPL TCU : SRM Long Intake : SRM RS7 Turbos : AMS Catted DP
    Location
    Anchorage, AK

    As the owner of a low miles (28,000) 2016 S6, Knowing what I know now, I'd go for the RS7. Don't get me wrong, I absolutely love my S6 even with the cost to upgrade to RS7 turbo's, down pipe, tune, etc. The thing is, no matter what I do to my S6, it's never going to be an RS6(7). Sure It's going to be more car than I really need, fun and I'll be happy, but the RS7 was designed from the onset to handle the power I will be upgrading/tuning to. In my mind, it would have been simpler to start with the RS7 rather than the S6 with all the mods only to end up essentially where the RS7 begins or a stage 1 tune away.

    I hope that makes sense.....

    Please don't get me wrong, I love my S6 and the only reason I'm even making the move to RS7 Turbos and all the required mods that go with them is that one of my S6 turbo's is already gone. 5yrs, 28,000 miles. The killer here is that I bought the car with 13,000 miles on it, so even though I had the oil changed every 5K miles, I really don't know how the previous owner treated it. Not to mention the fact that even S6's were rare when I bought mine 3yrs ago, RS7's were non-existent.

    Took my car in for what I thought was a transmission whine. Got a call from Audi to meet them at the shop so they could show me this:

    https://youtu.be/nasLGmztmhU

    SRM RS7 Turbo's , DS1 and AMS Downpipe already ordered, will take care of the intake and cooling when I get it back to the home garage. Bittersweet when I pulled the trigger on the upgrades, but now I mostly just can't wait to drive the car when it's done. Car already has an EPL Stage 1 ECU and an EPL TCU tune. Keeping the TCU tune for now but moving to the DS1 for the RS7 Turbos.

    :) Point is, regardless of the mileage on the two S6's, unless you know they've already taken care of the turbo oil screen, you're going to have to do it eventually. ;) Hopefully you're as lucky as me and catch it before catastrophic failure. I'm betting my drivers side turbo would have essentially exploded in less than 25 miles from when it was discovered. I've never seen anything like it. Dealt with plenty of Diesel turbos, but this is my first gas turbo. No nicks or dings on the compressor wheel and the most ridiculous shaft play I've ever seen in a turbo. :D
    Last edited by acruxksa; 04-29-2021 at 10:35 PM.
    2016 Audi S6 Prestige DS-1 Stage 3 w/AMS Catted DP, SRM RS7 Turbos, SRM Long Intakes, EPL TCU
    2022 Audi e-tron Prestige Plus (delivery expected the week before x-mas 2021) ;)

  36. #36
    Senior Member Two Rings
    Join Date
    Feb 21 2019
    AZ Member #
    455499
    My Garage
    JKU with LS motor, 2016 3.0 TDI ,2017 Q7 Prestige, '04 CC Magna 42' '84 streached CJ7 with a 6.0ls
    Location
    Wellington Nevada

    Just got my RS5 wheels which came with some 255/35Ventus V12 EVO2 tires about 1/2 tread left but wearing perfectly.
    Attached Images
    2016 3.0 TDI Tornado Gray Metallic Prestige Black Optic Package S Line Sport Package.
    2017 3.0T Argus Brown Metallic Prestige Adaptive suspension Driver assistance 21's

  37. #37
    Senior Member Two Rings
    Join Date
    May 31 2009
    AZ Member #
    43131
    Location
    Austin, TX

    so are we saying reliability wise, long term you can go stage 1 or stage 2 on a A6 vs the maintenance cost of going S6 long term?
    Do some of the S6 concerns go away if you are looking at a CPO car since you at least have the 100k extended warranty?

  38. #38
    Established Member Two Rings joeyjazesmith's Avatar
    Join Date
    Mar 11 2021
    AZ Member #
    591385
    Location
    boogy down, NY

    to be honest there are a lot of mods that can be done to handle most of the known issues of the 4.0t. JHM makes and oil strainer relocation kit which allows you to keep the strainer but have it in a easily serviceable location. 034 motorsports is developing street density mounts to replace the live mounts that are prone to failure. They are expected to release that within the next couple of months. There's a mechatronics service repair kit for around 500 or less that an audi indie shop can do for you. I think there are a few companies that offer aftermarket clutch kits for people going higher power.

    I Had the option of an almost fully loaded (black optics, heads up display, 20 inch rotors etc) prestige c7s6 that had an audi exclusive interior vs a premium plus c7.5 s6 with none of the extra options both with similar miles. I went with the c7 because of all the extra options and because i ended up really liking the headlights more than I thought I would. I even like them more than c7.5 headlights. I do prefer the c7.5 bumper because it has more aggressive lines but what i like even more is the c7 rs6 bumper upgrade which you can for 1100 unpainted with the carbon trim. I do miss apple carplay, but there are options to get it either with stock screen or with RS NAv 10 inch touch screen upgrade. Another thing i do like that the c7.5 has that the c7 hasnt been able to be replicate is the upgraded maps view in the digital cockpit portion of the dash.

    My cousin got an audi s4 and got IE stage 1 tune intake and exhaust. HIs 3.0t moves and im assuming it may help the a6 be a little lighter in the front. The S6 does have a higher potential as far as overall power gains. I got a stage 1 ecu and tcu tune from apr and especially 45+ the car takes off. To my knowledge the a6 would have a lot of mods on the market because of the 3.0t s4, but the s6 market is developing nicely as well. As long as your just changing the turbo cores, the service for it isn't that bad, even if you try doing it yourself if you're comfortable working on cars. The s6 you can lower the car a decent amount with obd11 and even more with a cete module that gives you more on the fly adjustability, thanks to the flexibility that comes with the air suspension. There are few cooling options as well even a few divorced cooling ones.
    C7 2015 Audi S6 | APR Stage 1 ECU tune | APR TCU tune | ECS Performance Engine Mounts | | ECS Luft-Technik intake system | ECS Billet Aluminum Underbody subframe brace | 034 Motorsports street density control arms | 034 Motorsport adjustable swaybar links | JHM Oil Strainer relocation Kit | TGK Motorsport Coolant Tank AN lines | Leyo Shift Knob | Uniden R7

  39. #39
    Junior Member Two Rings
    Join Date
    Apr 04 2016
    AZ Member #
    371330
    Location
    Vancouver, BC

    After 2 months of scouring everything available in Canada, I have my car picked out. Ended up going higher mileage than I thought I would, but the condition of the car appears to be good and the options are perfect.

    2013 Estoril Blue S6
    132k kms (82k mi)
    B&O, Driver Assistance + Lane Assist, Night Vision + HUD, Comfort Seats, 360 camera, 20" rotors (summer), winters on 19"

    The car was in warranty until 120k kms, and appears to have been regularly serviced by an Audi dealer. Waiting on the Audi dealer to open up Monday to get verification of the service records, and will likely be slightly nervous about the purchase until then. Carfax and inspection are clean, buying from a BMW dealership owned by a large Canadian automotive group (Dilawri).

    I test drove a lot of cars: A6, A7, S6, S7. The folks with the RS7 were really dodgy, decided to stay away from that. The final decision came down to price (spent $15k less than my target, will be useful for maintenance and mods) and the specific vehicle build: I wanted the HUD, B&O, LED headlights, rotors, and I really, really wanted it in Estoril Blue.

    Picking it up Wednesday if all goes well, will put a few KMs on it while I start to plan for mods.
    2103 S6 Estoril Blue

  40. #40
    Veteran Member Three Rings A665's Avatar
    Join Date
    Oct 26 2019
    AZ Member #
    523812
    Location
    Mid-Atlantic

    Quote Originally Posted by Roboticus View Post
    After 2 months of scouring everything available in Canada, I have my car picked out. Ended up going higher mileage than I thought I would, but the condition of the car appears to be good and the options are perfect.

    2013 Estoril Blue S6
    132k kms (82k mi)
    B&O, Driver Assistance + Lane Assist, Night Vision + HUD, Comfort Seats, 360 camera, 20" rotors (summer), winters on 19"

    The car was in warranty until 120k kms, and appears to have been regularly serviced by an Audi dealer. Waiting on the Audi dealer to open up Monday to get verification of the service records, and will likely be slightly nervous about the purchase until then. Carfax and inspection are clean, buying from a BMW dealership owned by a large Canadian automotive group (Dilawri).

    I test drove a lot of cars: A6, A7, S6, S7. The folks with the RS7 were really dodgy, decided to stay away from that. The final decision came down to price (spent $15k less than my target, will be useful for maintenance and mods) and the specific vehicle build: I wanted the HUD, B&O, LED headlights, rotors, and I really, really wanted it in Estoril Blue.

    Picking it up Wednesday if all goes well, will put a few KMs on it while I start to plan for mods.
    CONGRATS!
    2013 Audi A6 3.0T Prestige | S-Line / Sport | Full LED | 034 Stage 1 ECU+TCU | ECS Trans Mount Insert | JHM Driveshaft Carrier Bushing | FormulaOne Pinnacle Tint

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