The Comparative Analysis :
Audi A8 L 50 TDI quattro tiptronic (17 - ..) vs. Mercedes S 450 CDI long 7G-TRONIC (09 - 10)
€ 97,100

€ 101,000

€ 97,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 101,000
ⓘ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 Audi A8 L 50 TDI is 3 inches longer and 2.9 inches wider.
Audi A8 L 50 TDI
Mercedes S 450 CDI long
58.5
76.6
83.9
58.5
73.7
83.5
76.6 in
Width
73.7 in
83.9 in
Width Incl. Mirrors
83.5 in
58.5 in
Height
58.5 in
123.1
208.7
124.6
205.7
208.7 in
Length
205.7 in
123.1 in
Wheelbase
124.6 in
Vehicle Weight
Audi A8 L 50 TDI
Mercedes S 450 CDI long
4575 lb
Curb Weight
4740 lb
5952 lb
Gross Vehicle
Weight
Weight
5952 lb

Weight Difference:
165 lb
3.48 %

General
Audi A8 L 50 TDI
Mercedes S 450 CDI long
D5 (4N)
Generation
W221
Sedan
Car Body Style
Sedan
Diesel
Fuel Type
Diesel

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

8-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
Audi A8 L 50 TDI
Mercedes S 450 CDI long
6-cylinder mild hybrid diesel engine with turbocharger
Engine Type
V8 diesel engine with turbocharger
Engine Series
Mercedes-Benz OM 629
DDVC
Engine Code
OM 629.911

4
Valves
4
6
Cylinders
8
3 L / 147 cu in
Displacement
4 L / 196 cu in
282 hp
at 3750 rpm
Power
316 hp
at 3600 rpm
Audi A8 L 50 TDI
282 hp
316 hp
Mercedes S 450 CDI long
443 lb‑ft
at 1250 rpm
Max. Torque
538 lb‑ft
at 2200 rpm
Audi A8 L 50 TDI
443 lb‑ft
538 lb‑ft
Mercedes S 450 CDI long
Performance
Audi A8 L 50 TDI
Mercedes S 450 CDI long
155 mph
Maximum Speed
155 mph
5.9 sec
Acceleration 0 to 62 mph
6.6 sec
62 mph
62
mph
mph
269 ft
0.000 sec

Audi A8 L 50 TDI
62 mph
62
mph
mph
302 ft
0.000 sec

Mercedes S 450 CDI long
▶ REPLAY
16.22 lb/hp
Weight-to-Power Ratio
15 lb/hp
Audi A8 L 50 TDI
16.22 lb/hp
15 lb/hp
Mercedes S 450 CDI long
Fuel Economy / Emissions
Audi A8 L 50 TDI
Mercedes S 450 CDI long
Fuel Economy
42 mpg
combined
26 mpg
Audi A8 L 50 TDI
42 mpg
26 mpg
Mercedes S 450 CDI long
37 mpg
city
18 mpg
No data
highway
34 mpg
19 gal
Fuel Tank Capacity
23.8 gal
799 mi
Range
615 mi
Audi A8 L 50 TDI
799 mi
615 mi
Mercedes S 450 CDI 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).
187.2 kWh
Audi A8 L 50 TDI
115.2 kWh
187.2 kWh
Mercedes S 450 CDI long
Euro 6d-TEMP-EVAP (WLTP)
Emission Standard
Euro 4 III
293 g/mi (WLTP)
CO2 Emissions
386 g/mi (NEFZ)
Practical Convenience
Audi A8 L 50 TDI
Mercedes S 450 CDI long
4
Doors
4
5
No. of Seats
5
1378 lb
Maximum Payload
1213 lb
14.3 cu ft
Trunk Volume
15.9 cu ft










No data
Cargo Volume (Seats Down)
No data