The Comparative Analysis :
Audi A8 50 TDI quattro tiptronic (17 - ..) vs. Mercedes S 250 CDI BlueEFFICIENCY 7G-TRONIC PLUS (11 - 13)
€ 93,600

€ 71,900

€ 93,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 71,900
ⓘ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 50 TDI is 3 inches longer, 2.9 inches wider and 0.5 inches lower than the Mercedes S 250 CDI BlueEFFICIENCY.
Audi A8 50 TDI
Mercedes S 250 CDI BlueEFFICIENCY
58
76.6
83.9
58.5
73.7
83.5
76.6 in
Width
73.7 in
83.9 in
Width Incl. Mirrors
83.5 in
58 in
Height
58.5 in
118
203.6
119.5
200.6
203.6 in
Length
200.6 in
118 in
Wheelbase
119.5 in
Vehicle Weight
Audi A8 50 TDI
Mercedes S 250 CDI BlueEFFICIENCY
4519 lb
Curb Weight
4343 lb
5930 lb
Gross Vehicle
Weight
Weight
5622 lb

Weight Difference:
176 lb
3.89 %

General
Audi A8 50 TDI
Mercedes S 250 CDI BlueEFFICIENCY
D5 (4N)
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 50 TDI
Mercedes S 250 CDI BlueEFFICIENCY
6-cylinder mild hybrid diesel engine with turbocharger
Engine Type
Straight-four diesel engine with two turbochargers (biturbo)
Engine Series
Mercedes-Benz OM 651
DDVC
Engine Code
OM 651.961

4
Valves
4
6
Cylinders
4
3 L / 147 cu in
Displacement
2.1 L / 103 cu in
282 hp
at 3750 rpm
Power
201 hp
at 4200 rpm
Audi A8 50 TDI
282 hp
201 hp
Mercedes S 250 CDI BlueEFFICIENCY
443 lb‑ft
at 1250 rpm
Max. Torque
369 lb‑ft
at 1600 rpm
Audi A8 50 TDI
443 lb‑ft
369 lb‑ft
Mercedes S 250 CDI BlueEFFICIENCY
Performance
Audi A8 50 TDI
Mercedes S 250 CDI BlueEFFICIENCY
155 mph
Maximum Speed
149 mph
5.9 sec
Acceleration 0 to 62 mph
8.2 sec
62 mph
62
mph
mph
269 ft
0.000 sec

Audi A8 50 TDI
62 mph
62
mph
mph
374 ft
0.000 sec

Mercedes S 250 CDI BlueEFFICIENCY
▶ REPLAY
16.02 lb/hp
Weight-to-Power Ratio
21.61 lb/hp
Audi A8 50 TDI
16.02 lb/hp
21.61 lb/hp
Mercedes S 250 CDI BlueEFFICIENCY
Fuel Economy / Emissions
Audi A8 50 TDI
Mercedes S 250 CDI BlueEFFICIENCY
Fuel Economy
42 mpg
combined
41 mpg
Audi A8 50 TDI
42 mpg
41 mpg
Mercedes S 250 CDI BlueEFFICIENCY
37 mpg
city
34 mpg
No data
highway
47 mpg
19 gal
Fuel Tank Capacity
21.9 gal
799 mi
Range
905 mi
Audi A8 50 TDI
799 mi
905 mi
Mercedes S 250 CDI BlueEFFICIENCY
Environmental Impact
115.2 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).
117.3 kWh
Audi A8 50 TDI
115.2 kWh
117.3 kWh
Mercedes S 250 CDI BlueEFFICIENCY
Euro 6d-TEMP-EVAP (WLTP)
Emission Standard
Euro 5
291 g/mi (WLTP)
CO2 Emissions
240 g/mi (NEFZ)
Practical Convenience
Audi A8 50 TDI
Mercedes S 250 CDI BlueEFFICIENCY
4
Doors
4
5
No. of Seats
5
1411 lb
Maximum Payload
1279 lb
14.3 cu ft
Trunk Volume
15.9 cu ft










No data
Cargo Volume (Seats Down)
No data