The Comparative Analysis :
BMW M3 Convertible M DKG (08 - 13) vs. BMW 428i Convertible Steptronic (14 - 15)
€ 79,100
€ 50,400
€ 79,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 50,400
ⓘ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 M3 Cabrio is 0.9 inches shorter, 0.8 inches narrower and 0.3 inches taller than the 428i Cabrio.
M3 Cabrio
428i Cabrio
54.8
71
77.8
54.5
71.9
79.4
71 in
Width
71.9 in
77.8 in
Width Incl. Mirrors
79.4 in
54.8 in
Height
54.5 in
108.7
181.7
110.6
182.6
181.7 in
Length
182.6 in
108.7 in
Wheelbase
110.6 in
Vehicle Weight
M3 Cabrio
428i Cabrio
4200 lb
Curb Weight
3913 lb
5027 lb
Gross Vehicle
Weight
Weight
4762 lb
Weight Difference:
287 lb
6.83 %
General
M3 Cabrio
428i Cabrio
E93
Generation
F33
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
7-speed dual clutch transmission
Transmission
8-speed automatic transmission
Engine
M3 Cabrio
428i Cabrio
V8 gasoline engine (naturally aspirated engine)
Engine Type
Straight-four gasoline engine with turbocharger
BMW S65
Engine Series
BMW N20
S65-B40
Engine Code
N20-B20
4
Valves
4
8
Cylinders
4
4 L / 196 cu in
Displacement
2 L / 98 cu in
414 hp
at 8300 rpm
Power
242 hp
at 5000 rpm
M3 Cabrio
414 hp
242 hp
428i Cabrio
295 lb‑ft
at 3900 rpm
Max. Torque
258 lb‑ft
at 1250 rpm
M3 Cabrio
295 lb‑ft
258 lb‑ft
428i Cabrio
Performance
M3 Cabrio
428i Cabrio
155 mph
Maximum Speed
155 mph
5.1 sec
Acceleration 0 to 62 mph
6.4 sec
62 mph
62
mph
mph
233 ft
0.000 sec
M3 Cabrio
62 mph
62
mph
mph
292 ft
0.000 sec
428i Cabrio
▶ REPLAY
10.14 lb/hp
Weight-to-Power Ratio
16.17 lb/hp
M3 Cabrio
10.14 lb/hp
16.17 lb/hp
428i Cabrio
Fuel Economy / Emissions
M3 Cabrio
428i Cabrio
Fuel Economy
19 mpg
combined
36 mpg
M3 Cabrio
19 mpg
36 mpg
428i Cabrio
14 mpg
city
27 mpg
No data
highway
No data
16.6 gal
Fuel Tank Capacity
15.9 gal
318 mi
Range
565 mi
M3 Cabrio
318 mi
565 mi
428i Cabrio
Environmental Impact
233 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).
125 kWh
M3 Cabrio
233 kWh
125 kWh
428i Cabrio
Euro 4
Emission Standard
Euro 6b (NEFZ)
472 g/mi (NEFZ)
CO2 Emissions
248 g/mi (NEFZ)
Practical Convenience
M3 Cabrio
428i Cabrio
2
Doors
2
4
No. of Seats
4
827 lb
Maximum Payload
849 lb
9.9 cu ft
Trunk Volume
10.5 cu ft
No data
Cargo Volume (Seats Down)
No data
