The Comparative Analysis :

Audi S8 tiptronic (06 - 09) vs. Mercedes S 420 CDI long 7G-TRONIC (06 - 09)

€ 100,100
Audi S8 tiptronic (06 - 09) Audi S8
€ 98,900
 Mercedes S 420 CDI long 7G-TRONIC (06 - 09) Mercedes S 420 CDI long
€ 100,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 98,900

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

The dimensions of these vehicles differ considerably. The Audi S8 is 15.9 cm shorter, 2.3 cm wider and 2.9 cm lower than the Mercedes S 420 CDI long.
Audi S8
Mercedes S 420 CDI long
1444
Blueprint Audi S8 tiptronic (06 - 09)
1894
2028
1473
Blueprint Mercedes S 420 CDI long 7G-TRONIC (06 - 09)
1871
2120
1894 mm
Width
1871 mm
2028 mm
Width Incl. Mirrors
2120 mm
1444 mm
Height
1473 mm
Blueprint Audi S8 tiptronic (06 - 09)
2944
5051
Blueprint Mercedes S 420 CDI long 7G-TRONIC (06 - 09)
3165
5210
5051 mm
Length
5210 mm
2944 mm
Wheelbase
3165 mm

Vehicle Weight

Audi S8
Mercedes S 420 CDI long
2015 kg
Kerb Weight
2140 kg
2540 kg
Gross Vehicle
Weight
2660 kg
Audi S8 tiptronic (06 - 09)
Weight Difference:
125 kg
5.84 %
Mercedes S 420 CDI long 7G-TRONIC (06 - 09)

General

Audi S8
Mercedes S 420 CDI long
D3 (4E)
Generation
W221
Saloon
Car Body Style
Saloon
Super Unleaded (98 RON)
Fuel Type
Diesel
Permanent all-wheel drive
Drive
Rear-wheel drive
6-speed automatic transmission
Transmission
7-speed automatic transmission

Engine

Audi S8
Mercedes S 420 CDI long
V10 petrol engine (nat­u­ral­ly as­pi­rat­ed engine)
Engine Type
V8 diesel engine with tur­bo­charger
Engine Series
Mercedes-Benz OM 629
BSM
Engine Code
OM 629.911
4
Valves
4
10
Cylinders
8
5204 CC
Engine Capacity
3996 CC
444 bhp
at 7000 rpm
Power
316 bhp
at 3600 rpm
Audi S8
444 bhp
316 bhp
Mercedes S 420 CDI long
540 NM
at 3500 rpm
Max. Torque
730 NM
at 2200 rpm
Audi S8
540 NM
730 NM
Mercedes S 420 CDI long

Performance

Audi S8
Mercedes S 420 CDI long
155 mph
Maximum Speed
155 mph
5.1 sec
Acceleration 0 to 62 mph
6 sec
62 mph 62
mph

71 m
0.000 sec

Audi S8

62 mph 62
mph

83 m
0.000 sec

Mercedes S 420 CDI long

▶ REPLAY
4.54 kg/bhp
Weight-to-Power Ratio
6.77 kg/bhp
Audi S8
4.54 kg/bhp
6.77 kg/bhp
Mercedes S 420 CDI long

Fuel Economy / Emissions

Audi S8
Mercedes S 420 CDI long
Fuel Economy
21 mpg
combined
30 mpg
Audi S8
21 mpg
30 mpg
Mercedes S 420 CDI long
14 mpg
city
22 mpg
No data
motorway
39 mpg
Kraftstoffanzeige
90 L
Fuel Tank Capacity
90 L
Kraftstoffanzeige
418 mi
Range
595 mi
Audi S8
418 mi
595 mi
Mercedes S 420 CDI long
Environmental Impact
253.8 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).
193.4 kWh
Audi S8
253.8 kWh
193.4 kWh
Mercedes S 420 CDI long
Euro 4 III
Emission Standard
Euro 4 III
319 g/km (NEFZ)
CO2 Emissions
247 g/km (NEFZ)

Practical Convenience

Audi S8
Mercedes S 420 CDI long
4
Doors
4
5
No. of Seats
5
525 kg
Maximum Payload
520 kg
500 L
Boot Capacity
560 L
No data
Boot Capacity (Seats Down)
No data