The Comparative Analysis :
ALPINA B3 Bi-Turbo Convertible Switch-Tronic (07 - 10) vs. BMW M3 Convertible (01 - 06)
€ 67,800

€ 63,800

€ 67,800
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 ALPINA B3 Bi-Turbo Convertible is slightly bigger in every dimension. It's 3.5 inches longer, 0.1 inches wider and 0.5 inches taller than the BMW M3 Cabrio.
ALPINA B3 Bi-Turbo Convertible
BMW M3 Cabrio
54.5
70.2
78
54
70.1
78
70.2 in
Width
70.1 in
78 in
Width Incl. Mirrors
78 in
54.5 in
Height
54 in
108.7
180.3
107.5
176.9
180.3 in
Length
176.9 in
108.7 in
Wheelbase
107.5 in
Vehicle Weight
ALPINA B3 Bi-Turbo Convertible
BMW M3 Cabrio
4068 lb
Curb Weight
3814 lb
4850 lb
Gross Vehicle
Weight
Weight
4630 lb

Weight Difference:
254 lb
6.24 %

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

Rear-wheel drive
Drivetrain
Rear-wheel drive

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

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

ALPINA B3 Bi-Turbo Convertible
62 mph
62
mph
mph
249 ft
0.000 sec

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








No data
Cargo Volume (Seats Down)
No data