Compare BMW M6 E63 Coupe vs Alpina B6 F13 Coupe vs Alpina B4 F32 LCI
Variants
M6 SMG
B6 Bi-Turbo
B6 Bi-Turbo EDITION 50
B4 S AWD
B4 S
B4 S Edition 99 AWD
B4 S Edition 99
Capacity
Cargo Capacity
450 L / 15.9 cu-ft
460 L / 16.2 cu-ft
445 L / 15.7 cu-ft
Coolant Capacity
15.0 L / 15.9 qt
Fuel Capacity
70.0 L / 18.5 gal
70.0 L / 18.5 gal
60.0 L / 15.9 gal
Passengers
4
4
4
Payload
490 kg / 1080 lbs
450 kg / 992 lbs
Chassis
Brakes | Front
Ventilated discs
Ventilated discs
Ventilated discs
Brakes | Rear
Ventilated discs
Ventilated discs
Ventilated discs
Power Steering
Hydraulic Steering
Electric Steering
Electric Steering
Suspension | Front
MacPherson strut
Double-wishbone
Suspension | Rear
Multi-link
Multi-link
Tire Size
245/30 ZR20, 265/30 ZR20
Turning Circle
12.5 m / 41.0 ft
Construction
Body Style
2-door Coupe
2-door Coupe
2-door Coupe
Dimensions
Size | Height
1373 mm / 54.1 in
Size | Length
4871 mm / 191.8 in
4894 mm / 192.7 in
4640 mm / 182.7 in
Size | Width
1855 mm / 73.0 in
1825 mm / 71.9 in
Track Width | Front
1567.0 mm / 61.7 in
1594.0 mm / 62.8 in
Track Width | Rear
1584.0 mm / 62.4 in
1576.0 mm / 62.0 in
Weight
1710.0 kg / 3769.9 lbs
1870.0 kg / 4122.6 lbs
Wheel Size
8J x 20, 9J x 20
Wheelbase
2781 mm / 109.5 in
2855 mm / 112.4 in
2810 mm / 110.6 in
Performance
Acceleration | 0 - 100 km/h
4.6 sec
Acceleration | 0 - 60 mph
4.4 sec
CO2 Emission
342 g/km
219 g/km
Coefficient Of Drag
0.32
Fuel Economy
9.4 L/100km / 25.0 MPG (combined) | 12.9 L/100km / 18.2 MPG (urban) | 7.4 L/100km / 31.8 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
Engine
S85B50
Engine | Bore
92.0 mm / 3.6 in
89.0 mm / 3.5 in
84.0 mm / 3.3 in
Engine | Compression Ratio
12.0:1
10.0:1
10.2:1
Engine | Displacement
5.0 L / 305.1 cu-in / 4999.0 cc
4.4 L / 268.2 cu-in / 4395.0 cc
3.0 L / 181.8 cu-in / 2979.0 cc
Engine | Power
507.0 hp / 378.1 kW @ 7750 rpm
Engine | Specific Output
101.4 hp/L / 1.7 hp/cu-in
Engine | Stroke
75.2 mm / 3.0 in
88.3 mm / 3.5 in
89.6 mm / 3.5 in
Engine | Torque
520 Nm / 383.5 lb-ft @ 6100 rpm
Engine | Type
Naturally-aspirated multi-port injected petrol V10 DOHC engine with 4 values per cylinder
Bi-turbocharged direct-injected petrol inline-6 engine with 4 values per cylinder
Transmission | Gears
7-speed
8-speed
8-speed
Transmission | Type
Automatic
Automatic
Automatic Switch-Tronic
Reviews
Neofiliac score
78%
64%
81%
Pros
- Superb, characterful V10 engine
- Beautiful exterior styling
- Good levels of power output
- Nice interior upgrades
- Good performance
- Good styling
Cons
- Horrible engine durability
- Bad SMG transmission
- Very high fuel consumption
- MacPherson front suspension
- Unreliable N63 engine
- Not as handsome as the E63
- Not as special as the M6
- Not notably better than the BMW 650i
- Not very special
- No manual transmission
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