The Comparative Analysis :

BMW M3 Cabrio SMG (04 - 06) vs. BMW 420i Cabrio Steptronic (14 - 16)

€ 67,000
BMW M3 Cabrio SMG (04 - 06) M3 Cabrio
€ 46,100
 BMW 420i Cabrio Steptronic (14 - 16) 420i Cabrio
€ 67,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 46,100

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

The M3 Cabrio is considerably smaller in every dimension. It's 14.6 cm shorter, 4.5 cm narrower and 1.2 cm lower than the 420i Cabrio.
M3 Cabrio
420i Cabrio
1372
Blueprint BMW M3 Cabrio SMG (04 - 06)
1780
1980
1384
Blueprint BMW 420i Cabrio Steptronic (14 - 16)
1825
2017
1780 mm
Width
1825 mm
1980 mm
Width Incl. Mirrors
2017 mm
1372 mm
Height
1384 mm
Blueprint BMW M3 Cabrio SMG (04 - 06)
2731
4492
Blueprint BMW 420i Cabrio Steptronic (14 - 16)
2810
4638
4492 mm
Length
4638 mm
2731 mm
Wheelbase
2810 mm

Vehicle Weight

M3 Cabrio
420i Cabrio
1730 kg
Kerb Weight
1750 kg
2100 kg
Gross Vehicle
Weight
2145 kg
BMW M3 Cabrio SMG (04 - 06)
Weight Difference:
20 kg
1.14 %
BMW 420i Cabrio Steptronic (14 - 16)

General

M3 Cabrio
420i Cabrio
E46
Generation
F33
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Rear-wheel drive
Drive
Rear-wheel drive
6-speed automated manual transmission (AMT)
Transmission
8-speed automatic transmission

Engine

M3 Cabrio
420i Cabrio
Straight-six petrol engine (nat­u­ral­ly as­pi­rat­ed engine)
Engine Type
Straight-four petrol engine with tur­bo­charger
BMW S54
Engine Series
BMW N20
S54-B32
Engine Code
N20-B20
4
Valves
4
6
Cylinders
4
3246 CC
Engine Capacity
1997 CC
338 bhp
at 7900 rpm
Power
181 bhp
at 5000 rpm
M3 Cabrio
338 bhp
181 bhp
420i Cabrio
365 NM
at 4900 rpm
Max. Torque
270 NM
at 1250 rpm
M3 Cabrio
365 NM
270 NM
420i Cabrio

Performance

M3 Cabrio
420i Cabrio
155 mph
Maximum Speed
143 mph
5.5 sec
Acceleration 0 to 62 mph
8.3 sec
62 mph 62
mph

76 m
0.000 sec

M3 Cabrio

62 mph 62
mph

115 m
0.000 sec

420i Cabrio

▶ REPLAY
5.12 kg/bhp
Weight-to-Power Ratio
9.67 kg/bhp
M3 Cabrio
5.12 kg/bhp
9.67 kg/bhp
420i Cabrio

Fuel Economy / Emissions

M3 Cabrio
420i Cabrio
Fuel Economy
21 mpg
combined
44 mpg
M3 Cabrio
21 mpg
44 mpg
420i Cabrio
14 mpg
city
33 mpg
No data
motorway
No data
Kraftstoffanzeige
63 L
Fuel Tank Capacity
60 L
Kraftstoffanzeige
288 mi
Range
583 mi
M3 Cabrio
288 mi
583 mi
420i Cabrio
Environmental Impact
257.7 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).
121.2 kWh
M3 Cabrio
257.7 kWh
121.2 kWh
420i Cabrio
Euro 4
Emission Standard
Euro 6b (NEFZ)
328 g/km (NEFZ)
CO2 Emissions
149 g/km (NEFZ)

Practical Convenience

M3 Cabrio
420i Cabrio
2
Doors
2
4
No. of Seats
4
370 kg
Maximum Payload
395 kg
300 L
Boot Capacity
370 L
No data
Boot Capacity (Seats Down)
No data