Compare Alpina B6 F12 vs BMW 6 Series E64 LCI Convertible vs BMW 4 Series F33 LCI Convertible
Variants
B6 Bi-Turbo
B6 Bi-Turbo EDITION 50
630i
630i AT
635d AT
650i
650i AT
420d
420d AT
420i
420i AT
430d AT
430i
430i AT
430i xDrive AT
435d xDrive AT
440i AT
440i xDrive AT
Capacity
Cargo Capacity
300 L / 10.6 cu-ft ~ 350 L / 12.4 cu-ft
370 L / 13.1 cu-ft
Fuel Capacity
70.0 L / 18.5 gal
70.0 L / 18.5 gal
Passengers
4
4
4
Payload
410 kg / 904 lbs
400 kg / 882 lbs
Chassis
Brakes | Front
Ventilated discs
Ventilated discs
Brakes | Rear
Ventilated discs
Ventilated discs
Power Steering
Electric Steering
Hydraulic Steering
Electric Steering
Suspension | Front
Double-wishbone
MacPherson strut
MacPherson strut
Suspension | Rear
Multi-link
Multi-link
Multi-link
Tire Size
225/50 R17, 225/45 R18, 255/40 R18, 225/40 R19, 255/35 R19
Turning Circle
11.4 m / 37.4 ft
Construction
Body Style
2-door Convertible
2-door Convertible
2-door Convertible
Dimensions
Size | Length
4894 mm / 192.7 in
4820 mm / 189.8 in
4640 mm / 182.7 in
Size | Width
1825 mm / 71.9 in
Track Width | Front
1594.0 mm / 62.8 in
1558.0 mm / 61.3 in
Track Width | Rear
1596.0 mm / 62.8 in
1593.0 mm / 62.7 in
Weight
2020.0 kg / 4453.3 lbs
Wheel Size
7.5J x 17, 8J x 18, 8.5J x 18, 8J x 19, 8.5J x 19
Wheelbase
2855 mm / 112.4 in
2780 mm / 109.4 in
2810 mm / 110.6 in
Performance
CO2 Emission
224 g/km
Fuel Economy
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
250.0 km/h / 155.3 mph
Powertrain
Drivetrain Layout
Front-engine (longitudinal), Rear-wheel drive
Front-engine (longitudinal), Rear-wheel drive
Emission Standard
Euro 4
Euro 6
Engine | Bore
89.0 mm / 3.5 in
Engine | Compression Ratio
10.0:1
Engine | Displacement
4.4 L / 268.2 cu-in / 4395.0 cc
Engine | Stroke
88.3 mm / 3.5 in
Engine | Type
Bi-turbocharged direct-injected petrol V8 engine
Transmission | Gears
8-speed
6-speed
Transmission | Type
Automatic Switch-Tronic
Production
Availability
2007 ~ 2010
2017 ~ 2020
Reviews
Neofiliac score
84%
72%
77%
Pros
- Superb level of torque
- Good performance
- Double-wishbone + multi-link suspensions
- Good looks with the top down
- Decent engine reliability
- As reliable a drivetrain as BMW gets
- Good 0.28 drag coefficient
- Good ZF 8HP transmission
- Good looks with top up or down
Cons
- Worse handling despite having double-wishbone front suspensions
- Even lower engine reliability
- Poor N53 engine introduced
- No real changes
- Not very good looks with the top up
- MacPherson front suspensions
- Complex and unreliable top
- Engine reliability concerns
Remove
Remove
Remove
Add up to 4 products to the comparison using the search bar above
Information on this page is provided on an as-is basis. No warranty on accuracy is implied. This page may contain affiliate links to third-party merchants such as Amazon and eBay. If you make a purchase using the supplied link, we may receive a commission. Neofiliac places the utmost respect for your privacy. We use no cookie whatsoever beyond that needed for the proper functioning of the website.