MERCEDES BENZ S 63 AMG (W221) 5.5L V8 L 7AT (544 HP) AUDI S8 4.0L TFSI MHEV V8 8AT quattro AWD (571 HP)
engine specs
Cylinders
V8V8
Displacement
5461 cm33996 cm3
Power
400 KW @ 5500 RPM
544 HP @ 5500 RPM
536 BHP @ 5500 RPM
420 KW @ 6000 RPM
571 HP @ 6000 RPM
563 BHP @ 6000 RPM
Torque
590 lb-ft @ 2000–4500 RPM
800 Nm @ 2000–4500 RPM
590 lb-ft @ 2050-4500 RPM
800 Nm @ 2050-4500 RPM
Fuel System
Turbocharged Direct InjectionTurbocharged Direct Injection
Fuel
GasolineGasoline
Fuel capacity
23.8 gallons (90.1 L)21.7 gallons (82.1 L)
performance specs
Top Speed
155 mph (249 km/h)155 mph (249 km/h)
Acceleration 0-62 Mph (0-100 kph)
4.5 s3.8 s
transmission specs
Drive Type
Rear Wheel DriveAll Wheel Drive
Gearbox
7-speed automatic (AMG-SPEEDSHIFT)8-speed automatic tiptronic
brakes specs
Front
Ventilated DiscsVentilated Discs
Rear
Ventilated DiscsVentilated discs
tires specs
Tire Size
255/40 R19 || 275/40 R19265/40 R20
dimensions
Length
206.7 in (5250 mm)204.3 in (5189 mm)
Width
73.6 in (1869 mm)76.6 in (1946 mm)
Height
58.1 in (1476 mm)58.1 in (1476 mm)
Front/rear Track
63.1/63.2 in (1,603/1,605 mm)64.1/63.5 in (1,628/1,613 mm)
Wheelbase
124.6 in (3165 mm)118 in (2997 mm)
Cargo Volume
19.7 cuFT (558 L)17.8 cuFT (504 L)
Aerodynamics (frontal area)
-2.43 m2
Aerodynamics (Cd)
0.30.28
Ground Clearance
5.8 in (147 mm)-
Turning circle
38.8 ft (11.8 m)-
weight specs
Unladen Weight
4784 lbs (2170 kg)4894 lbs (2220 kg)
Gross Weight Limit
5941 lbs (2695 kg)6250 lbs (2835 kg)
fuel economy (nedc)
Combined
22 mpg US (10.7 L/100Km)21.8 mpg US (10.8 L/100Km)
City
16 mpg US (14.7 L/100Km)15.6 mpg US (15.1 L/100Km)
Highway
29 mpg US (8.1 L/100Km)28.7 mpg US (8.2 L/100Km)
CO2 Emissions
244 g/km246 g/km

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