The Comparative Analysis :
Mercedes S 450 long 4MATIC 7G-TRONIC Sport (09 - 10) vs. Audi A8 4.2 TDI quattro tiptronic (13 - 17)
€ 97,500
€ 102,300
€ 97,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 102,300
ⓘ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 3.6 inches longer, 3.1 inches narrower and an inch taller than the Audi A8 4.2 TDI.
Mercedes S 450 long
Audi A8 4.2 TDI
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
124.6
205.7
117.8
202.2
205.7 in
Length
202.2 in
124.6 in
Wheelbase
117.8 in
Vehicle Weight
Mercedes S 450 long
Audi A8 4.2 TDI
4575 lb
Curb Weight
4663 lb
5864 lb
Gross Vehicle
Weight
Weight
5964 lb
Weight Difference:
88 lb
1.89 %
General
Mercedes S 450 long
Audi A8 4.2 TDI
W221
Generation
D4 (4H)
Sedan
Car Body Style
Sedan
Mid-Grade Unleaded
Fuel Type
Diesel
Permanent all-wheel drive (AWD)
Drivetrain
Permanent all-wheel drive (AWD)
7-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
Mercedes S 450 long
Audi A8 4.2 TDI
V8 gasoline engine (naturally aspirated engine)
Engine Type
V8 diesel engine with two turbochargers (biturbo)
Mercedes-Benz M 273
Engine Series
M 273.924
Engine Code
CTEC
4
Valves
4
8
Cylinders
8
4.7 L / 230 cu in
Displacement
4.1 L / 201 cu in
335 hp
at 6000 rpm
Power
380 hp
at 3750 rpm
Mercedes S 450 long
335 hp
380 hp
Audi A8 4.2 TDI
339 lb‑ft
at 2700 rpm
Max. Torque
627 lb‑ft
at 2000 rpm
Mercedes S 450 long
339 lb‑ft
627 lb‑ft
Audi A8 4.2 TDI
Performance
Mercedes S 450 long
Audi A8 4.2 TDI
155 mph
Maximum Speed
155 mph
5.9 sec
Acceleration 0 to 62 mph
4.7 sec
62 mph
62
mph
mph
269 ft
0.000 sec
Mercedes S 450 long
62 mph
62
mph
mph
213 ft
0.000 sec
Audi A8 4.2 TDI
▶ REPLAY
13.66 lb/hp
Weight-to-Power Ratio
12.27 lb/hp
Mercedes S 450 long
13.66 lb/hp
12.27 lb/hp
Audi A8 4.2 TDI
Fuel Economy / Emissions
Mercedes S 450 long
Audi A8 4.2 TDI
Fuel Economy
21 mpg
combined
33 mpg
Mercedes S 450 long
21 mpg
33 mpg
Audi A8 4.2 TDI
14 mpg
city
25 mpg
30 mpg
highway
No data
23.8 gal
Fuel Tank Capacity
23.8 gal
508 mi
Range
777 mi
Mercedes S 450 long
508 mi
777 mi
Audi A8 4.2 TDI
Environmental Impact
208.4 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).
148.1 kWh
Mercedes S 450 long
208.4 kWh
148.1 kWh
Audi A8 4.2 TDI
Euro 5
Emission Standard
Euro 6b (NEFZ)
412 g/mi (NEFZ)
CO2 Emissions
304 g/mi (NEFZ)
Practical Convenience
Mercedes S 450 long
Audi A8 4.2 TDI
4
Doors
4
5
No. of Seats
5
1290 lb
Maximum Payload
1301 lb
15.9 cu ft
Trunk Volume
13.9 cu ft
No data
Cargo Volume (Seats Down)
No data
