The Comparative Analysis :
Audi A8 4.2 FSI quattro tiptronic (10 - 12) vs. Mercedes S 320 CDI BlueEFFICIENCY long 7G-TRONIC (08 - 09)
€ 91,100

€ 80,200

€ 91,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 80,200
ⓘ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 4.2 FSI is 2.9 inches shorter, 3.1 inches wider and 0.5 inches lower than the Mercedes S 320 CDI BlueEFFICIENCY long.
Audi A8 4.2 FSI
Mercedes S 320 CDI BlueEFFICIENCY long
57.5
76.7
83.1
58
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
117.8
202.2
124.6
205.1
202.2 in
Length
205.1 in
117.8 in
Wheelbase
124.6 in
Vehicle Weight
Audi A8 4.2 FSI
Mercedes S 320 CDI BlueEFFICIENCY long
4211 lb
Curb Weight
4409 lb
5567 lb
Gross Vehicle
Weight
Weight
5688 lb

Weight Difference:
198 lb
4.49 %

General
Audi A8 4.2 FSI
Mercedes S 320 CDI BlueEFFICIENCY long
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 4.2 FSI
Mercedes S 320 CDI BlueEFFICIENCY long
V8 gasoline engine (naturally aspirated engine)
Engine Type
V6 diesel engine with turbocharger
Engine Series
Mercedes-Benz OM 642
CDRA
Engine Code
OM 642.930

4
Valves
4
8
Cylinders
6
4.2 L / 206 cu in
Displacement
3 L / 147 cu in
366 hp
at 6800 rpm
Power
232 hp
at 3600 rpm
Audi A8 4.2 FSI
366 hp
232 hp
Mercedes S 320 CDI BlueEFFICIENCY long
328 lb‑ft
at 3500 rpm
Max. Torque
398 lb‑ft
at 1600 rpm
Audi A8 4.2 FSI
328 lb‑ft
398 lb‑ft
Mercedes S 320 CDI BlueEFFICIENCY long
Performance
Audi A8 4.2 FSI
Mercedes S 320 CDI BlueEFFICIENCY long
155 mph
Maximum Speed
155 mph
5.7 sec
Acceleration 0 to 62 mph
7.8 sec
62 mph
62
mph
mph
259 ft
0.000 sec

Audi A8 4.2 FSI
62 mph
62
mph
mph
354 ft
0.000 sec

Mercedes S 320 CDI BlueEFFICIENCY long
▶ REPLAY
11.51 lb/hp
Weight-to-Power Ratio
19 lb/hp
Audi A8 4.2 FSI
11.51 lb/hp
19 lb/hp
Mercedes S 320 CDI BlueEFFICIENCY long
Fuel Economy / Emissions
Audi A8 4.2 FSI
Mercedes S 320 CDI BlueEFFICIENCY long
Fuel Economy
25 mpg
combined
31 mpg
Audi A8 4.2 FSI
25 mpg
31 mpg
Mercedes S 320 CDI BlueEFFICIENCY long
18 mpg
city
22 mpg
No data
highway
39 mpg
23.8 gal
Fuel Tank Capacity
23.8 gal
588 mi
Range
726 mi
Audi A8 4.2 FSI
588 mi
726 mi
Mercedes S 320 CDI BlueEFFICIENCY long
Environmental Impact
179.9 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).
158.4 kWh
Audi A8 4.2 FSI
179.9 kWh
158.4 kWh
Mercedes S 320 CDI BlueEFFICIENCY long
Euro 5
Emission Standard
Euro 4 III
352 g/mi (NEFZ)
CO2 Emissions
325 g/mi (NEFZ)
Practical Convenience
Audi A8 4.2 FSI
Mercedes S 320 CDI BlueEFFICIENCY long
4
Doors
4
5
No. of Seats
5
1356 lb
Maximum Payload
1279 lb
14.4 cu ft
Trunk Volume
15.9 cu ft










No data
Cargo Volume (Seats Down)
No data