The Comparative Analysis :
Mercedes S 450 long 7G-TRONIC (06 - 09) vs. Audi A8 3.0 TDI quattro tiptronic (13 - 15)
€ 91,600

€ 77,600

€ 91,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 77,600
ⓘ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 long is 3 inches longer, 3.1 inches narrower and 0.5 inches taller than the Audi A8 3.0 TDI.
Mercedes S 450 long
Audi A8 3.0 TDI
58
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 in
Height
57.5 in
124.6
205.1
117.8
202.2
205.1 in
Length
202.2 in
124.6 in
Wheelbase
117.8 in
Vehicle Weight
Mercedes S 450 long
Audi A8 3.0 TDI
4376 lb
Curb Weight
4310 lb
5655 lb
Gross Vehicle
Weight
Weight
5666 lb

Weight Difference:
66 lb
1.51 %

General
Mercedes S 450 long
Audi A8 3.0 TDI
W221
Generation
D4 (4H)
Sedan
Car Body Style
Sedan
Mid-Grade Unleaded
Fuel Type
Diesel

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

7-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
Mercedes S 450 long
Audi A8 3.0 TDI
V8 gasoline engine (naturally aspirated engine)
Engine Type
V6 diesel engine with turbocharger
Mercedes-Benz M 273
Engine Series
M 273.922
Engine Code
CTBA

4
Valves
4
8
Cylinders
6
4.7 L / 230 cu in
Displacement
3 L / 147 cu in
335 hp
at 6000 rpm
Power
254 hp
at 4000 rpm
Mercedes S 450 long
335 hp
254 hp
Audi A8 3.0 TDI
339 lb‑ft
at 2700 rpm
Max. Torque
428 lb‑ft
at 1750 rpm
Mercedes S 450 long
339 lb‑ft
428 lb‑ft
Audi A8 3.0 TDI
Performance
Mercedes S 450 long
Audi A8 3.0 TDI
155 mph
Maximum Speed
155 mph
5.9 sec
Acceleration 0 to 62 mph
5.9 sec
62 mph
62
mph
mph
269 ft
0.000 sec

Mercedes S 450 long
62 mph
62
mph
mph
269 ft
0.000 sec

Audi A8 3.0 TDI
▶ REPLAY
13.06 lb/hp
Weight-to-Power Ratio
16.97 lb/hp
Mercedes S 450 long
13.06 lb/hp
16.97 lb/hp
Audi A8 3.0 TDI
Fuel Economy / Emissions
Mercedes S 450 long
Audi A8 3.0 TDI
Fuel Economy
21 mpg
combined
40 mpg
Mercedes S 450 long
21 mpg
40 mpg
Audi A8 3.0 TDI
14 mpg
city
32 mpg
29 mpg
highway
No data
23.8 gal
Fuel Tank Capacity
21.7 gal
495 mi
Range
864 mi
Mercedes S 450 long
495 mi
864 mi
Audi A8 3.0 TDI
Environmental Impact
214 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).
121.3 kWh
Mercedes S 450 long
214 kWh
121.3 kWh
Audi A8 3.0 TDI
Euro 4 III
Emission Standard
Euro 6b (NEFZ)
433 g/mi (NEFZ)
CO2 Emissions
249 g/mi (NEFZ)
Practical Convenience
Mercedes S 450 long
Audi A8 3.0 TDI
4
Doors
4
5
No. of Seats
5
1279 lb
Maximum Payload
1356 lb
15.9 cu ft
Trunk Volume
13.9 cu ft












No data
Cargo Volume (Seats Down)
No data