The Comparative Analysis :
Audi A8 4.2 TDI quattro tiptronic (13 - 17) vs. Mercedes S 320 CDI BlueEFFICIENCY long 7G-TRONIC (08 - 09)
€ 102,300

€ 80,200

€ 102,300
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 TDI is 3 inches shorter, 3.1 inches wider and 0.5 inches lower than the Mercedes S 320 CDI BlueEFFICIENCY long.
Audi A8 4.2 TDI
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 TDI
Mercedes S 320 CDI BlueEFFICIENCY long
4663 lb
Curb Weight
4409 lb
5964 lb
Gross Vehicle
Weight
Weight
5688 lb

Weight Difference:
254 lb
5.45 %

General
Audi A8 4.2 TDI
Mercedes S 320 CDI BlueEFFICIENCY long
D4 (4H)
Generation
W221
Sedan
Car Body Style
Sedan
Diesel
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 TDI
Mercedes S 320 CDI BlueEFFICIENCY long
V8 diesel engine with two turbochargers (biturbo)
Engine Type
V6 diesel engine with turbocharger
Engine Series
Mercedes-Benz OM 642
CTEC
Engine Code
OM 642.930

4
Valves
4
8
Cylinders
6
4.1 L / 201 cu in
Displacement
3 L / 147 cu in
380 hp
at 3750 rpm
Power
232 hp
at 3600 rpm
Audi A8 4.2 TDI
380 hp
232 hp
Mercedes S 320 CDI BlueEFFICIENCY long
627 lb‑ft
at 2000 rpm
Max. Torque
398 lb‑ft
at 1600 rpm
Audi A8 4.2 TDI
627 lb‑ft
398 lb‑ft
Mercedes S 320 CDI BlueEFFICIENCY long
Performance
Audi A8 4.2 TDI
Mercedes S 320 CDI BlueEFFICIENCY long
155 mph
Maximum Speed
155 mph
4.7 sec
Acceleration 0 to 62 mph
7.8 sec
62 mph
62
mph
mph
213 ft
0.000 sec

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

Mercedes S 320 CDI BlueEFFICIENCY long
▶ REPLAY
12.27 lb/hp
Weight-to-Power Ratio
19 lb/hp
Audi A8 4.2 TDI
12.27 lb/hp
19 lb/hp
Mercedes S 320 CDI BlueEFFICIENCY long
Fuel Economy / Emissions
Audi A8 4.2 TDI
Mercedes S 320 CDI BlueEFFICIENCY long
Fuel Economy
33 mpg
combined
31 mpg
Audi A8 4.2 TDI
33 mpg
31 mpg
Mercedes S 320 CDI BlueEFFICIENCY long
25 mpg
city
22 mpg
No data
highway
39 mpg
23.8 gal
Fuel Tank Capacity
23.8 gal
777 mi
Range
726 mi
Audi A8 4.2 TDI
777 mi
726 mi
Mercedes S 320 CDI BlueEFFICIENCY long
Environmental Impact
148.1 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 TDI
148.1 kWh
158.4 kWh
Mercedes S 320 CDI BlueEFFICIENCY long
Euro 6b (NEFZ)
Emission Standard
Euro 4 III
304 g/mi (NEFZ)
CO2 Emissions
325 g/mi (NEFZ)
Practical Convenience
Audi A8 4.2 TDI
Mercedes S 320 CDI BlueEFFICIENCY long
4
Doors
4
5
No. of Seats
5
1301 lb
Maximum Payload
1279 lb
13.9 cu ft
Trunk Volume
15.9 cu ft












No data
Cargo Volume (Seats Down)
No data