The Comparative Analysis :
Mercedes S 420 CDI 7G-TRONIC (06 - 09) vs. Audi A8 L 50 TDI quattro tiptronic (17 - ..)
€ 91,100
€ 97,100
€ 91,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 97,100
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Mercedes S 420 CDI is considerably smaller in every dimension. It's 8.7 inches shorter, 2.9 inches narrower and 0.5 inches lower than the Audi A8 L 50 TDI.
Mercedes S 420 CDI
Audi A8 L 50 TDI
58
73.7
83.5
58.5
76.6
83.9
73.7 in
Width
76.6 in
83.5 in
Width Incl. Mirrors
83.9 in
58 in
Height
58.5 in
119.5
200
123.1
208.7
200 in
Length
208.7 in
119.5 in
Wheelbase
123.1 in
Vehicle Weight
Mercedes S 420 CDI
Audi A8 L 50 TDI
4608 lb
Curb Weight
4575 lb
5820 lb
Gross Vehicle
Weight
Weight
5952 lb
Weight Difference:
33 lb
0.72 %
General
Mercedes S 420 CDI
Audi A8 L 50 TDI
W221
Generation
D5 (4N)
Sedan
Car Body Style
Sedan
Diesel
Fuel Type
Diesel
Rear-wheel drive
Drivetrain
Permanent all-wheel drive (AWD)
7-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
Mercedes S 420 CDI
Audi A8 L 50 TDI
V8 diesel engine with turbocharger
Engine Type
6-cylinder mild hybrid diesel engine with turbocharger
Mercedes-Benz OM 629
Engine Series
OM 629.911
Engine Code
DDVC
4
Valves
4
8
Cylinders
6
4 L / 196 cu in
Displacement
3 L / 147 cu in
316 hp
at 3600 rpm
Power
282 hp
at 3750 rpm
Mercedes S 420 CDI
316 hp
282 hp
Audi A8 L 50 TDI
538 lb‑ft
at 2200 rpm
Max. Torque
443 lb‑ft
at 1250 rpm
Mercedes S 420 CDI
538 lb‑ft
443 lb‑ft
Audi A8 L 50 TDI
Performance
Mercedes S 420 CDI
Audi A8 L 50 TDI
155 mph
Maximum Speed
155 mph
6 sec
Acceleration 0 to 62 mph
5.9 sec
62 mph
62
mph
mph
272 ft
0.000 sec
Mercedes S 420 CDI
62 mph
62
mph
mph
269 ft
0.000 sec
Audi A8 L 50 TDI
▶ REPLAY
14.58 lb/hp
Weight-to-Power Ratio
16.22 lb/hp
Mercedes S 420 CDI
14.58 lb/hp
16.22 lb/hp
Audi A8 L 50 TDI
Fuel Economy / Emissions
Mercedes S 420 CDI
Audi A8 L 50 TDI
Fuel Economy
25 mpg
combined
42 mpg
Mercedes S 420 CDI
25 mpg
42 mpg
Audi A8 L 50 TDI
18 mpg
city
37 mpg
33 mpg
highway
No data
23.8 gal
Fuel Tank Capacity
19 gal
595 mi
Range
799 mi
Mercedes S 420 CDI
595 mi
799 mi
Audi A8 L 50 TDI
Environmental Impact
193.4 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).
115.2 kWh
Mercedes S 420 CDI
193.4 kWh
115.2 kWh
Audi A8 L 50 TDI
Euro 4 III
Emission Standard
Euro 6d-TEMP-EVAP (WLTP)
398 g/mi (NEFZ)
CO2 Emissions
293 g/mi (WLTP)
Practical Convenience
Mercedes S 420 CDI
Audi A8 L 50 TDI
4
Doors
4
5
No. of Seats
5
1213 lb
Maximum Payload
1378 lb
15.9 cu ft
Trunk Volume
14.3 cu ft
No data
Cargo Volume (Seats Down)
No data
