Compare Alpina B6 E64 vs BMW M4 F83 Convertible vs BMW 6 Series E64 LCI Convertible
Variants
B6
B6 S
M4
M4 DCT
M4 Competition
M4 Competition DCT
630i
630i AT
635d AT
650i
650i AT
Capacity
Cargo Capacity
450 L / 15.9 cu-ft
220 L / 7.8 cu-ft ~ 370 L / 13.1 cu-ft
Coolant Capacity
13.9 L / 14.7 qt
Engine Oil Capacity
6.5 L / 6.9 qt
Fuel Capacity
70.0 L / 18.5 gal
60.0 L / 15.9 gal
70.0 L / 18.5 gal
Passengers
4
4
4
Payload
260 kg / 573 lbs
400 kg / 882 lbs
Chassis
Brakes | Front
Ventilated discs
Ventilated discs
Brakes | Rear
Ventilated discs
Power Steering
Electric Steering
Hydraulic Steering
Suspension | Front
MacPherson strut
MacPherson strut
MacPherson strut
Suspension | Rear
Multi-link
Multi-link
Multi-link
Turning Circle
12.2 m / 40.0 ft
11.4 m / 37.4 ft
Construction
Body Style
2-door Convertible
2-door Convertible
2-door Convertible
Dimensions
Size | Height
1371 mm / 54.0 in
Size | Length
4820 mm / 189.8 in
4671 mm / 183.9 in
4820 mm / 189.8 in
Size | Width
1855 mm / 73.0 in
Track Width | Front
1558.0 mm / 61.3 in
1579.0 mm / 62.2 in
1558.0 mm / 61.3 in
Track Width | Rear
1598.0 mm / 62.9 in
1596.0 mm / 62.8 in
Weight
1930.0 kg / 4254.9 lbs
Wheelbase
2780 mm / 109.4 in
2812 mm / 110.7 in
2780 mm / 109.4 in
Performance
Coefficient Of Drag
0.34
Fuel Economy
18.9 L/100km / 12.4 MPG (combined) | 22.6 L/100km / 10.4 MPG (urban) | 9.3 L/100km / 25.3 MPG (highway)
Top Speed
250.0 km/h / 155.3 mph
250.0 km/h / 155.3 mph
Powertrain
Drivetrain Layout
Front-engine (longitudinal), Rear-wheel drive
Front-engine (longitudinal), Rear-wheel drive
Front-engine (longitudinal), Rear-wheel drive
Emission Standard
Euro 4
Euro 6
Euro 4
Engine
S55B30
Engine | Bore
92.0 mm / 3.6 in
84.0 mm / 3.3 in
Engine | Compression Ratio
9.0:1
10.2:1
Engine | Displacement
4.4 L / 268.4 cu-in / 4398.0 cc
3.0 L / 181.8 cu-in / 2979.0 cc
Engine | Stroke
82.7 mm / 3.3 in
89.6 mm / 3.5 in
Engine | Torque
550 Nm / 405.7 lb-ft @ 1850-5500 rpm
Engine | Type
Supercharged multi-port injected petrol V8 DOHC engine with 4 values per cylinder
Twin-scroll turbocharged direct-injected petrol inline-6 engine with 4 values per cylinder
Transmission | Gears
6-speed
6-speed
Transmission | Type
Automatic
Production
Availability
2007 ~ 2010
Reviews
Neofiliac score
87%
90%
72%
Pros
- Superb elegance and styling
- Good performance
- Decent handling
- Exceptionally gorgeous top up or down
- Great S55 engine
- Good manual transmission and decent DCT
- Good looks with the top down
- Decent engine reliability
Cons
- Very high fuel consumption
- Stuck with MacPherson struts in the front
- Quite heavy
- Does not handle all that well
- Poor N53 engine introduced
- No real changes
- Not very good looks with the top up
- MacPherson front suspensions
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