Compare Audi RS 4 B7 Sedan vs Audi RS 7 C7 vs Audi S8 D4
Variants
RS 7
RS 7 Performance
S8
S8 Plus
Capacity
Cargo Capacity
460 L / 16.2 cu-ft ~ 720 L / 25.4 cu-ft
520 L / 18.4 cu-ft
Coolant Capacity
12.0 L / 12.7 qt
15.0 L / 15.9 qt
14.8 L / 15.6 qt
Engine Oil Capacity
9.6 L / 10.1 qt
8.7 L / 9.2 qt
8.7 L / 9.2 qt
Fuel Capacity
63.0 L / 16.6 gal
82.0 L / 21.7 gal
Passengers
5
4
5
Payload
610 kg / 1345 lbs
585 kg / 1290 lbs
600 kg / 1323 lbs
Chassis
Brakes | Front
Ventilated discs
Ventilated discs
Ventilated discs
Brakes | Rear
Ventilated discs
Ventilated discs
Ventilated discs
Power Steering
Electric Steering
Electric Steering
Suspension | Front
Multi-link
Multi-link
Multi-link
Suspension | Rear
Independent on trapezoidal lever
Independent on trapezoidal lever
Independent on trapezoidal lever
Tire Size
255/40 R18
265/40 R20
Turning Circle
11.1 m / 36.4 ft
11.9 m / 39.0 ft
Construction
Body Style
4-door Sedan
5-door Sedan
4-door Sedan
Dimensions
Size | Height
1415 mm / 55.7 in
1419 mm / 55.9 in
1458 mm / 57.4 in
Size | Length
4589 mm / 180.7 in
5012 mm / 197.3 in
5147 mm / 202.6 in
Size | Width
1816 mm / 71.5 in
1911 mm / 75.2 in | 2139 mm / 84.2 in (mirror unfolded)
1949 mm / 76.7 in | 2111 mm / 83.1 in (mirror unfolded)
Track Width | Front
1559.0 mm / 61.4 in
1634.0 mm / 64.3 in
1632.0 mm / 64.3 in
Track Width | Rear
1569.0 mm / 61.8 in
1625.0 mm / 64.0 in
1623.0 mm / 63.9 in
Weight
1650.0 kg / 3637.6 lbs
1930.0 kg / 4254.9 lbs
1990.0 kg / 4387.2 lbs
Wheel Size
8.5J X 18
9.0J x 20
Wheelbase
2648 mm / 104.3 in
2915 mm / 114.8 in
2994 mm / 117.9 in
Performance
Acceleration | 0 - 100 km/h
4.8 sec
Acceleration | 0 - 60 mph
4.6 sec
CO2 Emission
329 g/km
Coefficient Of Drag
0.31
0.30
0.28
Fuel Economy
13.7 L/100km / 17.2 MPG (combined) | 19.7 L/100km / 11.9 MPG (urban) | 10.1 L/100km / 23.3 MPG (highway)
Top Speed
250.0 km/h / 155.3 mph
250.0 km/h / 155.3 mph
Towing Capacity
750 kg / 1653 lbs (w/o brakes) | 2300 kg / 5071 lbs (w/ brakes @ 8% gradient) | 2300 kg / 5071 lbs (w/ brakes @ 12% gradient)
Powertrain
Drivetrain Layout
Front-engine (longitudinal), All-wheel drive
Front-engine (longitudinal), All-wheel drive
Front-engine (longitudinal), All-wheel drive
Emission Standard
Euro 4
Euro 6
Euro 6
Engine
BNS
Engine | Bore
84.5 mm / 3.3 in
84.5 mm / 3.3 in
84.5 mm / 3.3 in
Engine | Compression Ratio
12.5:1
9.3:1
9.3:1
Engine | Displacement
4.2 L / 254.0 cu-in / 4163.0 cc
4.0 L / 243.7 cu-in / 3993.0 cc
4.0 L / 243.7 cu-in / 3993.0 cc
Engine | Power
420.0 hp / 313.2 kW @ 7800 rpm
Engine | Specific Output
100.9 hp/L / 1.7 hp/cu-in
Engine | Stroke
92.8 mm / 3.7 in
89.0 mm / 3.5 in
89.0 mm / 3.5 in
Engine | Torque
430 Nm / 317.2 lb-ft @ 5500 rpm
Engine | Type
Naturally-aspirated direct-injected petrol V8 DOHC engine with 4 values per cylinder
Bi-turbocharged direct-injected petrol V8 DOHC engine with 4 values per cylinder
Transmission | Gears
6-speed
8-speed
8-speed
Transmission | Type
Manual
Automatic ZF 8HP
Production
Availability
2005 ~ 2009
Reviews
Neofiliac score
72%
81%
86%
Pros
- Superb suspension setup
- High-sprung engine with characters
- Great 6-speed manual transmission
- Great multi-link suspension setup
- Awe-inspiring 605hp of power and 700Nm of torque
- Perhaps more reliable than the RS 6 from the previous generation (C6)
- Rather good styling
- Powerful V8TT engine
- Great suspension setup
- Good 0.28 drag coefficient
- Good towing capacity
Cons
- No space for any work in the engine bay
- Engine not the most reliable in the industry
- Arguably less attractive than the RS6 Avant
- Questionable long-term reliability
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