The Comparative Analysis :
Mercedes S 63 AMG SPEEDSHIFT 7G-TRONIC (06 - 09) vs. Audi A8 55 TFSI quattro tiptronic (17 - ..)
€ 134,200

€ 95,200

€ 134,200
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 95,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ slightly. Both cars are the same height, but the Mercedes S 63 AMG is 2.3 inches shorter and 2.9 inches narrower.
Mercedes S 63 AMG
Audi A8 55 TFSI
58
73.7
83.5
58
76.6
83.9
73.7 in
Width
76.6 in
83.5 in
Width Incl. Mirrors
83.9 in
58 in
Height
58 in
119.5
201.3
118
203.6
201.3 in
Length
203.6 in
119.5 in
Wheelbase
118 in
Vehicle Weight
Mercedes S 63 AMG
Audi A8 55 TFSI
4564 lb
Curb Weight
4420 lb
5721 lb
Gross Vehicle
Weight
Weight
5930 lb

Weight Difference:
143 lb
3.13 %

General
Mercedes S 63 AMG
Audi A8 55 TFSI
W221
Generation
D5 (4N)
Sedan
Car Body Style
Sedan
Premium Unleaded
Fuel Type
Mid-Grade Unleaded

Rear-wheel drive
Drivetrain
Permanent all-wheel drive (AWD)

7-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
Mercedes S 63 AMG
Audi A8 55 TFSI
V8 gasoline engine (naturally aspirated engine)
Engine Type
6-cylinder mild hybrid gasoline engine with turbocharger
Mercedes-Benz M 156
Engine Series
M 156.984
Engine Code
CZSE

4
Valves
4
8
Cylinders
6
6.2 L / 303 cu in
Displacement
3 L / 147 cu in
518 hp
at 6800 rpm
Power
335 hp
at 5000 rpm
Mercedes S 63 AMG
518 hp
335 hp
Audi A8 55 TFSI
465 lb‑ft
at 5200 rpm
Max. Torque
369 lb‑ft
at 1370 rpm
Mercedes S 63 AMG
465 lb‑ft
369 lb‑ft
Audi A8 55 TFSI
Performance
Mercedes S 63 AMG
Audi A8 55 TFSI
155 mph
Maximum Speed
155 mph
4.6 sec
Acceleration 0 to 62 mph
5.6 sec
62 mph
62
mph
mph
210 ft
0.000 sec

Mercedes S 63 AMG
62 mph
62
mph
mph
256 ft
0.000 sec

Audi A8 55 TFSI
▶ REPLAY
8.81 lb/hp
Weight-to-Power Ratio
13.19 lb/hp
Mercedes S 63 AMG
8.81 lb/hp
13.19 lb/hp
Audi A8 55 TFSI
Fuel Economy / Emissions
Mercedes S 63 AMG
Audi A8 55 TFSI
Fuel Economy
16 mpg
combined
30 mpg
Mercedes S 63 AMG
16 mpg
30 mpg
Audi A8 55 TFSI
10 mpg
city
22 mpg
23 mpg
highway
No data
23.8 gal
Fuel Tank Capacity
19 gal
375 mi
Range
574 mi
Mercedes S 63 AMG
375 mi
574 mi
Audi A8 55 TFSI
Environmental Impact
282.3 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
147.7 kWh
Mercedes S 63 AMG
282.3 kWh
147.7 kWh
Audi A8 55 TFSI
Euro 4 III
Emission Standard
Euro 6d-TEMP (WLTP)
571 g/mi (NEFZ)
CO2 Emissions
344 g/mi (WLTP)
Practical Convenience
Mercedes S 63 AMG
Audi A8 55 TFSI
4
Doors
4
5
No. of Seats
5
1157 lb
Maximum Payload
1510 lb
15.9 cu ft
Trunk Volume
14.3 cu ft










No data
Cargo Volume (Seats Down)
No data