The Comparative Analysis :
BMW 420i Cabrio Steptronic (14 - 16) vs. BMW M3 Cabrio SMG (04 - 06)
€ 46,100
€ 67,000
€ 46,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 67,000
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The 420i Cabrio is considerably bigger in every dimension. It's 14.6 cm longer, 4.5 cm wider and 1.2 cm taller than the M3 Cabrio.
420i Cabrio
M3 Cabrio
1384
1825
2017
1372
1780
1980
1825 mm
Width
1780 mm
2017 mm
Width Incl. Mirrors
1980 mm
1384 mm
Height
1372 mm
2810
4638
2731
4492
4638 mm
Length
4492 mm
2810 mm
Wheelbase
2731 mm
Vehicle Weight
420i Cabrio
M3 Cabrio
1750 kg
Kerb Weight
1730 kg
2145 kg
Gross Vehicle
Weight
Weight
2100 kg
Weight Difference:
20 kg
1.14 %
General
420i Cabrio
M3 Cabrio
F33
Generation
E46
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Rear-wheel drive
Drive
Rear-wheel drive
8-speed automatic transmission
Transmission
6-speed automated manual transmission (AMT)
Engine
420i Cabrio
M3 Cabrio
Straight-four petrol engine with turbocharger
Engine Type
Straight-six petrol engine (naturally aspirated engine)
BMW N20
Engine Series
BMW S54
N20-B20
Engine Code
S54-B32
4
Valves
4
4
Cylinders
6
1997 CC
Engine Capacity
3246 CC
181 bhp
at 5000 rpm
Power
338 bhp
at 7900 rpm
420i Cabrio
181 bhp
338 bhp
M3 Cabrio
270 NM
at 1250 rpm
Max. Torque
365 NM
at 4900 rpm
420i Cabrio
270 NM
365 NM
M3 Cabrio
Performance
420i Cabrio
M3 Cabrio
143 mph
Maximum Speed
155 mph
8.3 sec
Acceleration 0 to 62 mph
5.5 sec
62 mph
62
mph
mph
115 m
0.000 sec
420i Cabrio
62 mph
62
mph
mph
76 m
0.000 sec
M3 Cabrio
▶ REPLAY
9.67 kg/bhp
Weight-to-Power Ratio
5.12 kg/bhp
420i Cabrio
9.67 kg/bhp
5.12 kg/bhp
M3 Cabrio
Fuel Economy / Emissions
420i Cabrio
M3 Cabrio
Fuel Economy
44 mpg
combined
21 mpg
420i Cabrio
44 mpg
21 mpg
M3 Cabrio
33 mpg
city
14 mpg
No data
motorway
No data
60 L
Fuel Tank Capacity
63 L
583 mi
Range
288 mi
420i Cabrio
583 mi
288 mi
M3 Cabrio
Environmental Impact
121.2 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).
257.7 kWh
420i Cabrio
121.2 kWh
257.7 kWh
M3 Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 4
149 g/km (NEFZ)
CO2 Emissions
328 g/km (NEFZ)
Practical Convenience
420i Cabrio
M3 Cabrio
2
Doors
2
4
No. of Seats
4
395 kg
Maximum Payload
370 kg
370 L
Boot Capacity
300 L
No data
Boot Capacity (Seats Down)
No data
