The two cars are almost virtually identical in performance. I watched a couple of videos of the RS5 vs RS3 and I honestly thought that the RS5 had better chances but when you compare the numbers it appears that the RS3 is neck to neck and even beats it by a small margin on some areas. Overall it seems like the RS3 is a lot of car for the money so I'll throw this : Money/performance ratio RS3 wins
link here: https://www.caranddriver.com/reviews...-6-performance
RS3
ENGINE TYPE: turbocharged and intercooled DOHC 20-valve inline-5, aluminum block and head, port and direct fuel injection
DISPLACEMENT: 151 cu in, 2480 cc
POWER: 400 hp @ 7000 rpm
TORQUE: 354 lb-ft @ 1700 rpm
TRANSMISSION: 7-speed dual-clutch automatic with manual shifting mode comparison
DIMENSIONS:
WHEELBASE: 103.6 in
LENGTH: 176.3 in
WIDTH: 70.9 in HEIGHT: 55.0 in
PASSENGER VOLUME: 87 cu ft
TRUNK VOLUME: 10 cu ft
CURB WEIGHT: 3547 lb
C/D TEST RESULTS: RS3/RS5
Zero to 60 mph: 3.5 sec. /3.5 sec (tied)
Zero to 100 mph: 8.7 sec. /8.8 sec(RS3 wins)
Zero to 130 mph: 15.4 sec/16.1 sec (RS3 wins)
Zero to 150 mph: 22.8 sec/23.8 sec (RS3 wins)
Rolling start, 5-60 mph: 4.3 sec/4.6sec (RS3 wins)
Top gear, 30-50 mph: 2.8 sec/2.7 sec (RS5 wins)
Top gear, 50-70 mph: 3.2 sec/3.0 sec (RS5 wins)
Standing ¼-mile: 11.9 sec @ 117 mph/11.9@116 (RS3 wins)
Top speed (governor limited, mfr's claim): 174 mph
Braking, 70-0 mph: 157 ft/156 ft (RS5 wins)
Roadholding, 300-ft-dia skidpad: 0.98 g/0.95g (RS3 wins
EPA FUEL ECONOMY:
Combined/city/highway: 22/19/28 mpg// 21/18/26 mpg (Rs3 wins)
RS5
ENGINE TYPE: twin-turbocharged and intercooled DOHC 24-valve V-6, aluminum block and heads, direct fuel injection
DISPLACEMENT: 177 cu in, 2894 cc
POWER: 444 hp @ 6700 rpm
TORQUE: 443 lb-ft @ 1900 rpm
TRANSMISSION: 8-speed automatic with manual shifting mode
CHASSIS
Suspension (F/R): multilink/multilink
Brakes (F/R): 15.7-in vented, cross-drilled carbon-ceramic disc/13.0-in vented, cross-drilled disc
Tires: Hankook Ventus S1 Evo2, 275/30R-20 97Y AO
DIMENSIONS
Wheelbase: 108.9 in
Length: 185.9 in
Width: 73.3 in
Height: 53.5 in
Passenger volume: 87 cu ft
Trunk volume: 12 cu ft
Curb weight: 4003 lb
C/D TEST RESULTS
Zero to 60 mph: 3.5 sec
Zero to 100 mph: 8.8 sec
Zero to 130 mph: 16.1 sec
Zero to 150 mph: 23.8 sec
Rolling start, 5–60 mph: 4.6 sec
Top gear, 30–50 mph: 2.7 sec
Top gear, 50–70 mph: 3.0 sec
Standing ¼-mile: 11.9 sec @ 116 mph
Top speed (governor limited, mfr’s claim): 174 mph
Braking, 70–0 mph: 156 ft
Roadholding, 300-ft-dia skidpad: 0.95 g
C/D FUEL ECONOMY
Observed: 20 mpg
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