The Comparative Analysis :
Audi A8 50 TDI quattro tiptronic (17 - ..) vs. Mercedes S 400 long 4MATIC 7G-TRONIC PLUS (15 - 17)
€ 93,600

€ 96,700

€ 93,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 96,700
ⓘ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 Audi A8 50 TDI is 2.9 inches shorter, 1.8 inches wider and 0.9 inches lower than the Mercedes S 400 long.
Audi A8 50 TDI
Mercedes S 400 long
58
76.6
83.9
58.9
74.8
83.9
76.6 in
Width
74.8 in
83.9 in
Width Incl. Mirrors
83.9 in
58 in
Height
58.9 in
118
203.6
124.6
206.5
203.6 in
Length
206.5 in
118 in
Wheelbase
124.6 in
Vehicle Weight
Audi A8 50 TDI
Mercedes S 400 long
4519 lb
Curb Weight
4564 lb
5930 lb
Gross Vehicle
Weight
Weight
6063 lb

Weight Difference:
44 lb
0.96 %

General
Audi A8 50 TDI
Mercedes S 400 long
D5 (4N)
Generation
W222/X222
Sedan
Car Body Style
Sedan
Diesel
Fuel Type
Mid-Grade Unleaded

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

8-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
Audi A8 50 TDI
Mercedes S 400 long
6-cylinder mild hybrid diesel engine with turbocharger
Engine Type
V6 gasoline engine with two turbochargers (biturbo)
Engine Series
Mercedes-Benz M 276
DDVC
Engine Code
M 276.824

4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3 L / 147 cu in
282 hp
at 3750 rpm
Power
328 hp
at 5250 rpm
Audi A8 50 TDI
282 hp
328 hp
Mercedes S 400 long
443 lb‑ft
at 1250 rpm
Max. Torque
354 lb‑ft
at 1600 rpm
Audi A8 50 TDI
443 lb‑ft
354 lb‑ft
Mercedes S 400 long
Performance
Audi A8 50 TDI
Mercedes S 400 long
155 mph
Maximum Speed
155 mph
5.9 sec
Acceleration 0 to 62 mph
6.1 sec
62 mph
62
mph
mph
269 ft
0.000 sec

Audi A8 50 TDI
62 mph
62
mph
mph
279 ft
0.000 sec

Mercedes S 400 long
▶ REPLAY
16.02 lb/hp
Weight-to-Power Ratio
13.91 lb/hp
Audi A8 50 TDI
16.02 lb/hp
13.91 lb/hp
Mercedes S 400 long
Fuel Economy / Emissions
Audi A8 50 TDI
Mercedes S 400 long
Fuel Economy
42 mpg
combined
28 mpg
Audi A8 50 TDI
42 mpg
28 mpg
Mercedes S 400 long
37 mpg
city
21 mpg
No data
highway
35 mpg
19 gal
Fuel Tank Capacity
18.5 gal
799 mi
Range
518 mi
Audi A8 50 TDI
799 mi
518 mi
Mercedes S 400 long
Environmental Impact
115.2 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).
159.2 kWh
Audi A8 50 TDI
115.2 kWh
159.2 kWh
Mercedes S 400 long
Euro 6d-TEMP-EVAP (WLTP)
Emission Standard
Euro 6b (NEFZ)
291 g/mi (WLTP)
CO2 Emissions
315 g/mi (NEFZ)
Practical Convenience
Audi A8 50 TDI
Mercedes S 400 long
4
Doors
4
5
No. of Seats
5
1411 lb
Maximum Payload
1499 lb
14.3 cu ft
Trunk Volume
15 cu ft










No data
Cargo Volume (Seats Down)
No data