The Comparative Analysis :
Mercedes S 450 CDI 7G-TRONIC (09 - 10) vs. Audi A8 4.0 TFSI cod quattro tiptronic (13 - 17)
€ 92,700

€ 104,400

€ 92,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 104,400
ⓘ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 Mercedes S 450 CDI is 1.5 inches shorter, 3.1 inches narrower and an inch taller than the Audi A8 4.0 TFSI cod.
Mercedes S 450 CDI
Audi A8 4.0 TFSI cod
58.5
73.7
83.5
57.5
76.7
83.1
73.7 in
Width
76.7 in
83.5 in
Width Incl. Mirrors
83.1 in
58.5 in
Height
57.5 in
119.5
200.6
117.8
202.2
200.6 in
Length
202.2 in
119.5 in
Wheelbase
117.8 in
Vehicle Weight
Mercedes S 450 CDI
Audi A8 4.0 TFSI cod
4608 lb
Curb Weight
4310 lb
5930 lb
Gross Vehicle
Weight
Weight
5666 lb

Weight Difference:
298 lb
6.47 %

General
Mercedes S 450 CDI
Audi A8 4.0 TFSI cod
W221
Generation
D4 (4H)
Sedan
Car Body Style
Sedan
Diesel
Fuel Type
Premium Unleaded

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

7-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
Mercedes S 450 CDI
Audi A8 4.0 TFSI cod
V8 diesel engine with turbocharger
Engine Type
V8 gasoline engine with two turbochargers (biturbo)
Mercedes-Benz OM 629
Engine Series
OM 629.911
Engine Code
CTGA

4
Valves
4
8
Cylinders
8
4 L / 196 cu in
Displacement
4 L / 196 cu in
316 hp
at 3600 rpm
Power
429 hp
at 5100 rpm
Mercedes S 450 CDI
316 hp
429 hp
Audi A8 4.0 TFSI cod
538 lb‑ft
at 2200 rpm
Max. Torque
443 lb‑ft
at 1500 rpm
Mercedes S 450 CDI
538 lb‑ft
443 lb‑ft
Audi A8 4.0 TFSI cod
Performance
Mercedes S 450 CDI
Audi A8 4.0 TFSI cod
155 mph
Maximum Speed
155 mph
6.6 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph
62
mph
mph
302 ft
0.000 sec

Mercedes S 450 CDI
62 mph
62
mph
mph
207 ft
0.000 sec

Audi A8 4.0 TFSI cod
▶ REPLAY
14.58 lb/hp
Weight-to-Power Ratio
10.05 lb/hp
Mercedes S 450 CDI
14.58 lb/hp
10.05 lb/hp
Audi A8 4.0 TFSI cod
Fuel Economy / Emissions
Mercedes S 450 CDI
Audi A8 4.0 TFSI cod
Fuel Economy
26 mpg
combined
26 mpg
Mercedes S 450 CDI
26 mpg
26 mpg
Audi A8 4.0 TFSI cod
18 mpg
city
19 mpg
34 mpg
highway
No data
23.8 gal
Fuel Tank Capacity
21.7 gal
615 mi
Range
572 mi
Mercedes S 450 CDI
615 mi
572 mi
Audi A8 4.0 TFSI cod
Environmental Impact
187.2 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).
168.7 kWh
Mercedes S 450 CDI
187.2 kWh
168.7 kWh
Audi A8 4.0 TFSI cod
Euro 4 III
Emission Standard
Euro 6b (NEFZ)
386 g/mi (NEFZ)
CO2 Emissions
332 g/mi (NEFZ)
Practical Convenience
Mercedes S 450 CDI
Audi A8 4.0 TFSI cod
4
Doors
4
5
No. of Seats
5
1323 lb
Maximum Payload
1356 lb
15.9 cu ft
Trunk Volume
13.9 cu ft












No data
Cargo Volume (Seats Down)
No data