The Comparative Analysis :

Audi A8 4.0 TFSI cod quattro tiptronic (13 - 17) vs. Mercedes S 420 CDI 7G-TRONIC (06 - 09)

€ 104,400
Audi A8 4.0 TFSI cod quattro tiptronic (13 - 17) Audi A8 4.0 TFSI cod
€ 91,100
 Mercedes S 420 CDI 7G-TRONIC (06 - 09) Mercedes S 420 CDI
€ 104,400
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 Audi A8 4.0 TFSI cod is 2.2 inches longer, 3.1 inches wider and 0.5 inches lower than the Mercedes S 420 CDI.
Audi A8 4.0 TFSI cod
Mercedes S 420 CDI
57.5
Blueprint Audi A8 4.0 TFSI cod quattro tiptronic (13 - 17)
76.7
83.1
58
Blueprint Mercedes S 420 CDI 7G-TRONIC (06 - 09)
73.7
83.5
76.7 in
Width
73.7 in
83.1 in
Width Incl. Mirrors
83.5 in
57.5 in
Height
58 in
Blueprint Audi A8 4.0 TFSI cod quattro tiptronic (13 - 17)
117.8
202.2
Blueprint Mercedes S 420 CDI 7G-TRONIC (06 - 09)
119.5
200
202.2 in
Length
200 in
117.8 in
Wheelbase
119.5 in

Vehicle Weight

Audi A8 4.0 TFSI cod
Mercedes S 420 CDI
4310 lb
Curb Weight
4608 lb
5666 lb
Gross Vehicle
Weight
5820 lb
Audi A8 4.0 TFSI cod quattro tiptronic (13 - 17)
Weight Difference:
298 lb
6.47 %
Mercedes S 420 CDI 7G-TRONIC (06 - 09)

General

Audi A8 4.0 TFSI cod
Mercedes S 420 CDI
D4 (4H)
Generation
W221
Sedan
Car Body Style
Sedan
Premium Unleaded
Fuel Type
Diesel
Permanent all-wheel drive (AWD)
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
7-speed automatic transmission

Engine

Audi A8 4.0 TFSI cod
Mercedes S 420 CDI
V8 gasoline engine with two tur­bo­chargers (bi­turbo)
Engine Type
V8 diesel engine with tur­bo­charger
Engine Series
Mercedes-Benz OM 629
CTGA
Engine Code
OM 629.911
4
Valves
4
8
Cylinders
8
4 L / 196 cu in
Displacement
4 L / 196 cu in
429 hp
at 5100 rpm
Power
316 hp
at 3600 rpm
Audi A8 4.0 TFSI cod
429 hp
316 hp
Mercedes S 420 CDI
443 lb‑ft
at 1500 rpm
Max. Torque
538 lb‑ft
at 2200 rpm
Audi A8 4.0 TFSI cod
443 lb‑ft
538 lb‑ft
Mercedes S 420 CDI

Performance

Audi A8 4.0 TFSI cod
Mercedes S 420 CDI
155 mph
Maximum Speed
155 mph
4.5 sec
Acceleration 0 to 62 mph
6 sec
62 mph 62
mph

207 ft
0.000 sec

Audi A8 4.0 TFSI cod

62 mph 62
mph

272 ft
0.000 sec

Mercedes S 420 CDI

▶ REPLAY
10.05 lb/hp
Weight-to-Power Ratio
14.58 lb/hp
Audi A8 4.0 TFSI cod
10.05 lb/hp
14.58 lb/hp
Mercedes S 420 CDI

Fuel Economy / Emissions

Audi A8 4.0 TFSI cod
Mercedes S 420 CDI
Fuel Economy
26 mpg
combined
25 mpg
Audi A8 4.0 TFSI cod
26 mpg
25 mpg
Mercedes S 420 CDI
19 mpg
city
18 mpg
No data
highway
33 mpg
Kraftstoffanzeige
21.7 gal
Fuel Tank Capacity
23.8 gal
Kraftstoffanzeige
572 mi
Range
595 mi
Audi A8 4.0 TFSI cod
572 mi
595 mi
Mercedes S 420 CDI
Environmental Impact
168.7 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 A8 4.0 TFSI cod
168.7 kWh
193.4 kWh
Mercedes S 420 CDI
Euro 6b (NEFZ)
Emission Standard
Euro 4 III
332 g/mi (NEFZ)
CO2 Emissions
398 g/mi (NEFZ)

Practical Convenience

Audi A8 4.0 TFSI cod
Mercedes S 420 CDI
4
Doors
4
5
No. of Seats
5
1356 lb
Maximum Payload
1213 lb
13.9 cu ft
Trunk Volume
15.9 cu ft
No data
Cargo Volume (Seats Down)
No data