The Comparative Analysis :
BMW 420d Convertible Steptronic (15 - 17) vs. Mercedes C 300 Convertible 9G-TRONIC (16 - 18)
€ 50,100
€ 51,900
€ 50,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 51,900
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ a little. The BMW 420d Cabrio is 1.9 inches shorter, 0.6 inches wider and an inch lower than the Mercedes C 300 Convertible.
BMW 420d Cabrio
Mercedes C 300 Convertible
54.5
71.9
79.4
55.5
71.3
79.4
71.9 in
Width
71.3 in
79.4 in
Width Incl. Mirrors
79.4 in
54.5 in
Height
55.5 in
110.6
182.6
111.8
184.5
182.6 in
Length
184.5 in
110.6 in
Wheelbase
111.8 in
Vehicle Weight
BMW 420d Cabrio
Mercedes C 300 Convertible
3946 lb
Curb Weight
3726 lb
4817 lb
Gross Vehicle
Weight
Weight
4784 lb
Weight Difference:
220 lb
5.57 %
General
BMW 420d Cabrio
Mercedes C 300 Convertible
F33
Generation
A205
Convertible
Car Body Style
Convertible
Diesel
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

8-speed automatic transmission
Transmission
9-speed automatic transmission
Engine
BMW 420d Cabrio
Mercedes C 300 Convertible
Straight-four diesel engine with turbocharger
Engine Type
Straight-four gasoline engine with turbocharger
BMW B47
Engine Series
Mercedes-Benz M 274
B47-D20
Engine Code
M 274.920


4
Valves
4
4
Cylinders
4
2 L / 98 cu in
Displacement
2 L / 98 cu in
187 hp
at 4000 rpm
Power
242 hp
at 5500 rpm
BMW 420d Cabrio
187 hp
242 hp
Mercedes C 300 Convertible
295 lb‑ft
at 1750 rpm
Max. Torque
273 lb‑ft
at 1300 rpm
BMW 420d Cabrio
295 lb‑ft
273 lb‑ft
Mercedes C 300 Convertible
Performance
BMW 420d Cabrio
Mercedes C 300 Convertible
142 mph
Maximum Speed
155 mph
8 sec
Acceleration 0 to 62 mph
6.4 sec
62 mph
62
mph
mph
364 ft
0.000 sec
BMW 420d Cabrio
62 mph
62
mph
mph
292 ft
0.000 sec
Mercedes C 300 Convertible
▶ REPLAY
21.1 lb/hp
Weight-to-Power Ratio
15.4 lb/hp
BMW 420d Cabrio
21.1 lb/hp
15.4 lb/hp
Mercedes C 300 Convertible
Fuel Economy / Emissions
BMW 420d Cabrio
Mercedes C 300 Convertible
Fuel Economy
53 mpg
combined
35 mpg
BMW 420d Cabrio
53 mpg
35 mpg
Mercedes C 300 Convertible
45 mpg
city
27 mpg
No data
highway
42 mpg
15.1 gal
Fuel Tank Capacity
17.4 gal
805 mi
Range
612 mi
BMW 420d Cabrio
805 mi
612 mi
Mercedes C 300 Convertible
Environmental Impact
90.4 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).
127 kWh
BMW 420d Cabrio
90.4 kWh
127 kWh
Mercedes C 300 Convertible
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
187 g/mi (NEFZ)
CO2 Emissions
243 g/mi (NEFZ)
Practical Convenience
BMW 420d Cabrio
Mercedes C 300 Convertible
2
Doors
2
4
No. of Seats
4
871 lb
Maximum Payload
1058 lb
10.5 cu ft
Trunk Volume
10.2 cu ft









No data
Cargo Volume (Seats Down)
No data




















