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Compare Audi S4 B9 facelift vs Audi S8 D5 vs Audi S8 D4

Variants
S8
S8 Plus

Capacity

Cargo Capacity
420 L / 14.8 cu-ft
505 L / 17.8 cu-ft
520 L / 18.4 cu-ft
Coolant Capacity
10.0 L / 10.6 qt
16.3 L / 17.2 qt
14.8 L / 15.6 qt
Engine Oil Capacity
6.1 L / 6.4 qt
9.5 L / 10.0 qt
8.7 L / 9.2 qt
Fuel Capacity
58.0 L / 15.3 gal
82.0 L / 21.7 gal
82.0 L / 21.7 gal
Passengers
5
5
5
Payload
530 kg / 1168 lbs
615 kg / 1356 lbs
600 kg / 1323 lbs

Chassis

Brakes | Front
Ventilated discs
Ventilated discs
Ventilated discs
Brakes | Rear
Disc
Ventilated discs
Ventilated discs
Offroad | Approach Angle
11.0 deg
Offroad | Departure Angle
14.0 deg
Power Steering
Electric Steering
Electric Steering
Electric Steering
Suspension | Front
Multi-link
Multi-link
Multi-link
Suspension | Rear
Multi-link
Multi-link
Independent on trapezoidal lever
Tire Size
265/40 R20
265/40 R20
Turning Circle
11.9 m / 39.0 ft
11.4 m / 37.4 ft

Construction

Body Style
4-door mild-hybrid Sedan
4-door mild-hybrid Sedan
4-door Sedan

Dimensions

Size | Height
1404 mm / 55.3 in
1475 mm / 58.1 in
1458 mm / 57.4 in
Size | Length
4770 mm / 187.8 in
5190 mm / 204.3 in
5147 mm / 202.6 in
Size | Width
1847 mm / 72.7 in | 2022 mm / 79.6 in (mirror unfolded)
1945 mm / 76.6 in | 2130 mm / 83.9 in (mirror unfolded)
1949 mm / 76.7 in | 2111 mm / 83.1 in (mirror unfolded)
Track Width | Front
1565.0 mm / 61.6 in
1629.0 mm / 64.1 in
1632.0 mm / 64.3 in
Track Width | Rear
1546.0 mm / 60.9 in
1614.0 mm / 63.5 in
1623.0 mm / 63.9 in
Weight
1785.0 kg / 3935.3 lbs
2220.0 kg / 4894.3 lbs
1990.0 kg / 4387.2 lbs
Wheel Size
9J x 20
9.0J x 20
Wheelbase
2825 mm / 111.2 in
2998 mm / 118.0 in
2994 mm / 117.9 in

Performance

Acceleration | 0 - 100 km/h
4.8 sec
3.8 sec
Acceleration | 0 - 60 mph
4.6 sec
3.6 sec
CO2 Emission
163 g/km
246 g/km
Coefficient Of Drag
0.28
0.28
Fuel Economy
6.2 L/100km / 37.9 MPG (combined) | 7.2 L/100km / 32.7 MPG (urban) | 5.6 L/100km / 42.0 MPG (highway)
10.8 L/100km / 21.8 MPG (combined) | 15.1 L/100km / 15.6 MPG (urban) | 8.2 L/100km / 28.7 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) | 2100 kg / 4630 lbs (w/ brakes @ 8% gradient) | 1900 kg / 4189 lbs (w/ brakes @ 12% gradient)
750 kg / 1653 lbs (w/o brakes) | 2300 kg / 5071 lbs (w/ brakes @ 8% gradient) | 2300 kg / 5071 lbs (w/ brakes @ 12% gradient)
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 6d - TEMP - EVAP - ISC
Euro 6d-ISC-FCM
Euro 6
Engine
DEWB
CWWB
Engine | Bore
86.0 mm / 3.4 in
84.5 mm / 3.3 in
Engine | Compression Ratio
10.1:1
9.3:1
Engine | Displacement
3.0 L / 181.1 cu-in / 2967.0 cc
4.0 L / 243.9 cu-in / 3996.0 cc
4.0 L / 243.7 cu-in / 3993.0 cc
Engine | Power
347.0 hp / 258.8 kW @ 3850 rpm
571.0 hp / 425.8 kW @ 6000 rpm
Engine | Specific Output
117.0 hp/L / 1.9 hp/cu-in
142.9 hp/L / 2.3 hp/cu-in
Engine | Stroke
86.0 mm / 3.4 in
89.0 mm / 3.5 in
Engine | Torque
700 Nm / 516.3 lb-ft @ 2500-3100 rpm
800 Nm / 590.0 lb-ft @ 2050-4500 rpm
Engine | Type
Turbocharged commonrail diesel V6 engine with 4 values per cylinder
Bi-turbocharged direct-injected petrol V8 DOHC engine with 4 values per cylinder
Transmission | Gears
8-speed
8-speed
8-speed
Transmission | Type
Automatic Tiptronic
Automatic tiptronic
Automatic ZF 8HP

Production

Availability
2019
2020

Reviews

Neofiliac score
58%
83%
86%
Pros
  • Decent performance
  • Loads of torque
  • Decent styling
  • Decent handling
  • Good performance
  • Great comfort
  • Good 0.28 drag coefficient
  • Rather good styling
  • Powerful V8TT engine
  • Great suspension setup
  • Good 0.28 drag coefficient
  • Good towing capacity
Cons
  • Less performant than the petrol
  • Uglier than before
  • No real difference in drivetrain from the D4 S8 except more emission-related complexities
  • Questionable long-term reliability

Price

Offers (incl. referral links)
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