The Comparative Analysis :
BMW 428i Convertible Steptronic (14 - 15) vs. BMW M3 Convertible (01 - 06)
€ 50,400
€ 63,800
€ 50,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 63,800
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The 428i Cabrio is considerably bigger in every dimension. It's 5.7 inches longer, 1.8 inches wider and 0.5 inches taller than the M3 Cabrio.
428i Cabrio
M3 Cabrio
54.5
71.9
79.4
54
70.1
78
71.9 in
Width
70.1 in
79.4 in
Width Incl. Mirrors
78 in
54.5 in
Height
54 in
110.6
182.6
107.5
176.9
182.6 in
Length
176.9 in
110.6 in
Wheelbase
107.5 in
Vehicle Weight
428i Cabrio
M3 Cabrio
3913 lb
Curb Weight
3814 lb
4762 lb
Gross Vehicle
Weight
Weight
4630 lb
Weight Difference:
99 lb
2.53 %
General
428i Cabrio
M3 Cabrio
F33
Generation
E46
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
6-speed manual transmission
Engine
428i Cabrio
M3 Cabrio
Straight-four gasoline engine with turbocharger
Engine Type
Straight-six gasoline engine (naturally aspirated engine)
BMW N20
Engine Series
BMW S54
N20-B20
Engine Code
S54-B32
4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3.2 L / 157 cu in
242 hp
at 5000 rpm
Power
338 hp
at 7900 rpm
428i Cabrio
242 hp
338 hp
M3 Cabrio
258 lb‑ft
at 1250 rpm
Max. Torque
269 lb‑ft
at 4900 rpm
428i Cabrio
258 lb‑ft
269 lb‑ft
M3 Cabrio
Performance
428i Cabrio
M3 Cabrio
155 mph
Maximum Speed
155 mph
6.4 sec
Acceleration 0 to 62 mph
5.5 sec
62 mph
62
mph
mph
292 ft
0.000 sec
428i Cabrio
62 mph
62
mph
mph
249 ft
0.000 sec
M3 Cabrio
▶ REPLAY
16.17 lb/hp
Weight-to-Power Ratio
11.28 lb/hp
428i Cabrio
16.17 lb/hp
11.28 lb/hp
M3 Cabrio
Fuel Economy / Emissions
428i Cabrio
M3 Cabrio
Fuel Economy
36 mpg
combined
17 mpg
428i Cabrio
36 mpg
17 mpg
M3 Cabrio
27 mpg
city
11 mpg
No data
highway
No data
15.9 gal
Fuel Tank Capacity
16.6 gal
565 mi
Range
288 mi
428i Cabrio
565 mi
288 mi
M3 Cabrio
Environmental Impact
125 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).
257.7 kWh
428i Cabrio
125 kWh
257.7 kWh
M3 Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 4
248 g/mi (NEFZ)
CO2 Emissions
528 g/mi (NEFZ)
Practical Convenience
428i Cabrio
M3 Cabrio
2
Doors
2
4
No. of Seats
4
849 lb
Maximum Payload
816 lb
10.5 cu ft
Trunk Volume
8.5 cu ft
No data
Cargo Volume (Seats Down)
No data
