The Comparative Analysis :
Mercedes S 400 long 4MATIC 7G-TRONIC PLUS (15 - 17) vs. Audi A8 4.2 FSI quattro tiptronic (10 - 12)
€ 96,700

€ 91,100

€ 96,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 91,100
ⓘ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. The Mercedes S 400 long is 4.3 inches longer, 2 inches narrower and 1.4 inches taller than the Audi A8 4.2 FSI.
Mercedes S 400 long
Audi A8 4.2 FSI
58.9
74.8
83.9
57.5
76.7
83.1
74.8 in
Width
76.7 in
83.9 in
Width Incl. Mirrors
83.1 in
58.9 in
Height
57.5 in
124.6
206.5
117.8
202.2
206.5 in
Length
202.2 in
124.6 in
Wheelbase
117.8 in
Vehicle Weight
Mercedes S 400 long
Audi A8 4.2 FSI
4564 lb
Curb Weight
4211 lb
6063 lb
Gross Vehicle
Weight
Weight
5567 lb

Weight Difference:
353 lb
7.74 %

General
Mercedes S 400 long
Audi A8 4.2 FSI
W222/X222
Generation
D4 (4H)
Sedan
Car Body Style
Sedan
Mid-Grade Unleaded
Fuel Type
Premium Unleaded

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

7-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
Mercedes S 400 long
Audi A8 4.2 FSI
V6 gasoline engine with two turbochargers (biturbo)
Engine Type
V8 gasoline engine (naturally aspirated engine)
Mercedes-Benz M 276
Engine Series
M 276.824
Engine Code
CDRA

4
Valves
4
6
Cylinders
8
3 L / 147 cu in
Displacement
4.2 L / 206 cu in
328 hp
at 5250 rpm
Power
366 hp
at 6800 rpm
Mercedes S 400 long
328 hp
366 hp
Audi A8 4.2 FSI
354 lb‑ft
at 1600 rpm
Max. Torque
328 lb‑ft
at 3500 rpm
Mercedes S 400 long
354 lb‑ft
328 lb‑ft
Audi A8 4.2 FSI
Performance
Mercedes S 400 long
Audi A8 4.2 FSI
155 mph
Maximum Speed
155 mph
6.1 sec
Acceleration 0 to 62 mph
5.7 sec
62 mph
62
mph
mph
279 ft
0.000 sec

Mercedes S 400 long
62 mph
62
mph
mph
259 ft
0.000 sec

Audi A8 4.2 FSI
▶ REPLAY
13.91 lb/hp
Weight-to-Power Ratio
11.51 lb/hp
Mercedes S 400 long
13.91 lb/hp
11.51 lb/hp
Audi A8 4.2 FSI
Fuel Economy / Emissions
Mercedes S 400 long
Audi A8 4.2 FSI
Fuel Economy
28 mpg
combined
25 mpg
Mercedes S 400 long
28 mpg
25 mpg
Audi A8 4.2 FSI
21 mpg
city
18 mpg
35 mpg
highway
No data
18.5 gal
Fuel Tank Capacity
23.8 gal
518 mi
Range
588 mi
Mercedes S 400 long
518 mi
588 mi
Audi A8 4.2 FSI
Environmental Impact
159.2 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).
179.9 kWh
Mercedes S 400 long
159.2 kWh
179.9 kWh
Audi A8 4.2 FSI
Euro 6b (NEFZ)
Emission Standard
Euro 5
315 g/mi (NEFZ)
CO2 Emissions
352 g/mi (NEFZ)
Practical Convenience
Mercedes S 400 long
Audi A8 4.2 FSI
4
Doors
4
5
No. of Seats
5
1499 lb
Maximum Payload
1356 lb
15 cu ft
Trunk Volume
14.4 cu ft










No data
Cargo Volume (Seats Down)
No data