The Comparative Analysis :
BMW M3 Convertible (01 - 06) vs. ALPINA B3 Bi-Turbo Convertible Switch-Tronic (07 - 10)
€ 63,800

€ 67,800

€ 63,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 67,800
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The BMW M3 Cabrio is slightly smaller in every dimension. It's 3.5 inches shorter, 0.1 inches narrower and 0.5 inches lower than the ALPINA B3 Bi-Turbo Convertible.
BMW M3 Cabrio
ALPINA B3 Bi-Turbo Convertible
54
70.1
78
54.5
70.2
78
70.1 in
Width
70.2 in
78 in
Width Incl. Mirrors
78 in
54 in
Height
54.5 in
107.5
176.9
108.7
180.3
176.9 in
Length
180.3 in
107.5 in
Wheelbase
108.7 in
Vehicle Weight
BMW M3 Cabrio
ALPINA B3 Bi-Turbo Convertible
3814 lb
Curb Weight
4068 lb
4630 lb
Gross Vehicle
Weight
Weight
4850 lb

Weight Difference:
254 lb
6.24 %

General
BMW M3 Cabrio
ALPINA B3 Bi-Turbo Convertible
E46
Generation
E93
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

6-speed manual transmission
Transmission
6-speed automatic transmission
Engine
BMW M3 Cabrio
ALPINA B3 Bi-Turbo Convertible
Straight-six gasoline engine (naturally aspirated engine)
Engine Type
Straight-six gasoline engine with two turbochargers (biturbo)
BMW S54
Engine Series
S54-B32
Engine Code
N54-K20

4
Valves
4
6
Cylinders
6
3.2 L / 157 cu in
Displacement
3 L / 147 cu in
338 hp
at 7900 rpm
Power
355 hp
at 5500 rpm
BMW M3 Cabrio
338 hp
355 hp
ALPINA B3 Bi-Turbo Convertible
269 lb‑ft
at 4900 rpm
Max. Torque
369 lb‑ft
at 3800 rpm
BMW M3 Cabrio
269 lb‑ft
369 lb‑ft
ALPINA B3 Bi-Turbo Convertible
Performance
BMW M3 Cabrio
ALPINA B3 Bi-Turbo Convertible
155 mph
Maximum Speed
174 mph
5.5 sec
Acceleration 0 to 62 mph
5 sec
62 mph
62
mph
mph
249 ft
0.000 sec

BMW M3 Cabrio
62 mph
62
mph
mph
226 ft
0.000 sec

ALPINA B3 Bi-Turbo Convertible
▶ REPLAY
11.28 lb/hp
Weight-to-Power Ratio
11.46 lb/hp
BMW M3 Cabrio
11.28 lb/hp
11.46 lb/hp
ALPINA B3 Bi-Turbo Convertible
Fuel Economy / Emissions
BMW M3 Cabrio
ALPINA B3 Bi-Turbo Convertible
Fuel Economy
17 mpg
combined
24 mpg
BMW M3 Cabrio
17 mpg
24 mpg
ALPINA B3 Bi-Turbo Convertible
11 mpg
city
17 mpg
No data
highway
No data
16.6 gal
Fuel Tank Capacity
16.6 gal
288 mi
Range
403 mi
BMW M3 Cabrio
288 mi
403 mi
ALPINA B3 Bi-Turbo Convertible
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).
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).
183.8 kWh
BMW M3 Cabrio
257.7 kWh
183.8 kWh
ALPINA B3 Bi-Turbo Convertible
Euro 4
Emission Standard
Euro 4
528 g/mi (NEFZ)
CO2 Emissions
381 g/mi (NEFZ)
Practical Convenience
BMW M3 Cabrio
ALPINA B3 Bi-Turbo Convertible
2
Doors
2
4
No. of Seats
4
816 lb
Maximum Payload
783 lb
8.5 cu ft
Trunk Volume
9.9 cu ft








No data
Cargo Volume (Seats Down)
No data