The Comparative Analysis :
BMW ActiveHybrid 7L (10 - 12) vs. Mercedes S 420 CDI 7G-TRONIC (06 - 09)
€ 112,900
€ 91,100
€ 112,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 91,100
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The BMW ActiveHybrid 7L is slightly bigger in every dimension. It's 5.2 inches longer, 1.2 inches wider and 0.4 inches taller than the Mercedes S 420 CDI.
BMW ActiveHybrid 7L
Mercedes S 420 CDI
58.4
74.9
84
58
73.7
83.5
74.9 in
Width
73.7 in
84 in
Width Incl. Mirrors
83.5 in
58.4 in
Height
58 in
126.4
205.2
119.5
200
205.2 in
Length
200 in
126.4 in
Wheelbase
119.5 in
Vehicle Weight
BMW ActiveHybrid 7L
Mercedes S 420 CDI
4729 lb
Curb Weight
4608 lb
5864 lb
Gross Vehicle
Weight
Weight
5820 lb
Weight Difference:
121 lb
2.56 %
General
BMW ActiveHybrid 7L
Mercedes S 420 CDI
F02
Generation
W221
Sedan
Car Body Style
Sedan
Premium Unleaded
Fuel Type
Diesel

Rear-wheel drive
Drivetrain
Rear-wheel drive

8-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
BMW ActiveHybrid 7L
Mercedes S 420 CDI
8-cylinder mild hybrid gasoline engine with two turbochargers (biturbo)
Engine Type
V8 diesel engine with turbocharger
BMW N63
Engine Series
Mercedes-Benz OM 629
N63-B44
Engine Code
OM 629.911

4
Valves
4
8
Cylinders
8
4.4 L / 215 cu in
Displacement
4 L / 196 cu in
459 hp
at 5500 rpm
Power
316 hp
at 3600 rpm
BMW ActiveHybrid 7L
459 hp
316 hp
Mercedes S 420 CDI
516 lb‑ft
at 2000 rpm
Max. Torque
538 lb‑ft
at 2200 rpm
BMW ActiveHybrid 7L
516 lb‑ft
538 lb‑ft
Mercedes S 420 CDI
Performance
BMW ActiveHybrid 7L
Mercedes S 420 CDI
155 mph
Maximum Speed
155 mph
4.9 sec
Acceleration 0 to 62 mph
6 sec
62 mph
62
mph
mph
223 ft
0.000 sec
BMW ActiveHybrid 7L
62 mph
62
mph
mph
272 ft
0.000 sec
Mercedes S 420 CDI
▶ REPLAY
10.3 lb/hp
Weight-to-Power Ratio
14.58 lb/hp
BMW ActiveHybrid 7L
10.3 lb/hp
14.58 lb/hp
Mercedes S 420 CDI
Fuel Economy / Emissions
BMW ActiveHybrid 7L
Mercedes S 420 CDI
Fuel Economy
25 mpg
combined
25 mpg
BMW ActiveHybrid 7L
25 mpg
25 mpg
Mercedes S 420 CDI
19 mpg
city
18 mpg
No data
highway
33 mpg
21.1 gal
Fuel Tank Capacity
23.8 gal
529 mi
Range
595 mi
BMW ActiveHybrid 7L
529 mi
595 mi
Mercedes S 420 CDI
Environmental Impact
178.2 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).
193.4 kWh
BMW ActiveHybrid 7L
178.2 kWh
193.4 kWh
Mercedes S 420 CDI
Euro 5
Emission Standard
Euro 4 III
352 g/mi (NEFZ)
CO2 Emissions
398 g/mi (NEFZ)
Practical Convenience
BMW ActiveHybrid 7L
Mercedes S 420 CDI
4
Doors
4
5
No. of Seats
5
1135 lb
Maximum Payload
1213 lb
13 cu ft
Trunk Volume
15.9 cu ft











No data
Cargo Volume (Seats Down)
No data
















