Compare Alpina D4 F33 Convertible vs Alpina B6 F12 vs BMW 6 Series E64 Convertible
Variants
LCI
Pre-LCI
B6 Bi-Turbo
B6 Bi-Turbo EDITION 50
630i
630i AT
645Ci
645Ci AT
650i
650i AT
Capacity
Cargo Capacity
300 L / 10.6 cu-ft ~ 350 L / 12.4 cu-ft
300 L / 10.6 cu-ft ~ 350 L / 12.4 cu-ft
Coolant Capacity
14.2 L / 15.0 qt
Fuel Capacity
57.0 L / 15.1 gal
70.0 L / 18.5 gal
70.0 L / 18.5 gal
Passengers
4
4
4
Payload
450 kg / 992 lbs
410 kg / 904 lbs
400 kg / 882 lbs
Chassis
Brakes | Front
Ventilated discs
Ventilated discs
Brakes | Rear
Ventilated discs
Ventilated discs
Disc
Power Steering
Electric Steering
Electric Steering
Hydraulic Steering
Suspension | Front
MacPherson strut
Double-wishbone
MacPherson strut
Suspension | Rear
Multi-link
Multi-link
Multi-link
Turning Circle
11.4 m / 37.4 ft
Construction
Body Style
2-door Convertible
2-door Convertible
2-door Convertible
Dimensions
Size | Height
1373 mm / 54.1 in
Size | Length
4640 mm / 182.7 in
4894 mm / 192.7 in
4820 mm / 189.8 in
Size | Width
1825 mm / 71.9 in
1855 mm / 73.0 in
Track Width | Front
1552.0 mm / 61.1 in
1594.0 mm / 62.8 in
1558.0 mm / 61.3 in
Track Width | Rear
1576.0 mm / 62.0 in
Weight
1815.0 kg / 4001.4 lbs
2020.0 kg / 4453.3 lbs
Wheelbase
2810 mm / 110.6 in
2855 mm / 112.4 in
2780 mm / 109.4 in
Performance
Acceleration | 0 - 100 km/h
5.0 sec
Acceleration | 0 - 60 mph
4.8 sec
CO2 Emission
155 g/km
224 g/km
Fuel Economy
5.9 L/100km / 39.9 MPG (combined) | 6.6 L/100km / 35.6 MPG (urban) | 5.5 L/100km / 42.8 MPG (highway)
9.6 L/100km / 24.5 MPG (combined) | 13.2 L/100km / 17.8 MPG (urban) | 7.5 L/100km / 31.4 MPG (highway)
Top Speed
275.0 km/h / 170.9 mph
250.0 km/h / 155.3 mph
Towing Capacity
750 kg / 1653 lbs (w/o brakes) | 1800 kg / 3968 lbs (w/ brakes @ 12% gradient)
Powertrain
Drivetrain Layout
Front-engine (longitudinal), Rear-wheel drive
Front-engine (longitudinal), Rear-wheel drive
Front-engine (longitudinal), Rear-wheel drive
Emission Standard
Euro 6
Euro 4
Engine | Bore
84.0 mm / 3.3 in
89.0 mm / 3.5 in
Engine | Compression Ratio
16.5:1
10.0:1
Engine | Displacement
3.0 L / 182.6 cu-in / 2993.0 cc
4.4 L / 268.2 cu-in / 4395.0 cc
Engine | Power
350.0 hp / 261.0 kW @ 4000 rpm
Engine | Specific Output
116.9 hp/L / 1.9 hp/cu-in
Engine | Stroke
90.0 mm / 3.5 in
88.3 mm / 3.5 in
Engine | Torque
700 Nm / 516.3 lb-ft @ 1500-3000 rpm
Engine | Type
Bi-turbocharged direct-injected petrol V8 engine
Transmission | Gears
8-speed
8-speed
6-speed
Transmission | Type
Automatic Switch Tronic
Automatic Switch-Tronic
Reviews
Neofiliac score
68%
84%
72%
Pros
- Decent performance
- Same styling as the Alpina B4 F33
- Superb level of torque
- Good performance
- Double-wishbone + multi-link suspensions
- Decent drivetrain reliability
- Decent looks with the top down
Cons
- Not different than the base 4 Series with a body kit
- Diesel in a convertible
- Worse handling despite having double-wishbone front suspensions
- Even lower engine reliability
- Stuck with MacPherson struts in the front
- Not very good looking with the top up
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