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Compare BMW M6 E63 Coupe vs Alpina B6 E63 Coupe vs Alpina B4 F32 LCI

Variants
M6 SMG
B6 S
B6
B4 S AWD
B4 S
B4 S Edition 99 AWD
B4 S Edition 99

Capacity

Cargo Capacity
450 L / 15.9 cu-ft
450 L / 15.9 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
470 kg / 1036 lbs

Chassis

Brakes | Front
Ventilated discs
Ventilated discs
Ventilated discs
Brakes | Rear
Ventilated discs
Ventilated discs
Power Steering
Hydraulic Steering
Electric Steering
Suspension | Front
MacPherson strut
MacPherson strut
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
1371 mm / 54.0 in
1373 mm / 54.1 in
Size | Length
4871 mm / 191.8 in
4820 mm / 189.8 in
4640 mm / 182.7 in
Size | Width
1855 mm / 73.0 in
1855 mm / 73.0 in
1825 mm / 71.9 in
Track Width | Front
1567.0 mm / 61.7 in
1558.0 mm / 61.3 in
Track Width | Rear
1584.0 mm / 62.4 in
1598.0 mm / 62.9 in
1576.0 mm / 62.0 in
Weight
1710.0 kg / 3769.9 lbs
1720.0 kg / 3792.0 lbs
Wheel Size
8J x 20, 9J x 20
Wheelbase
2781 mm / 109.5 in
2780 mm / 109.4 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
Coefficient Of Drag
0.32
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 4
Engine
S85B50
Engine | Bore
92.0 mm / 3.6 in
92.0 mm / 3.6 in
84.0 mm / 3.3 in
Engine | Compression Ratio
12.0:1
9.0:1
10.2:1
Engine | Displacement
5.0 L / 305.1 cu-in / 4999.0 cc
4.4 L / 268.4 cu-in / 4398.0 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
82.7 mm / 3.3 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
Naturally-aspirated multi-port injected petrol V8 DOHC engine with 4 values per cylinder
Bi-turbocharged direct-injected petrol inline-6 engine with 4 values per cylinder
Transmission | Gears
7-speed
6-speed
8-speed
Transmission | Type
Automatic
Automatic
Automatic Switch-Tronic

Reviews

Neofiliac score
78%
76%
81%
Pros
  • Superb, characterful V10 engine
  • Beautiful exterior styling
  • Great exterior styling
  • Characterful supercharged V8
  • Good performance
  • Good styling
Cons
  • Horrible engine durability
  • Bad SMG transmission
  • Very high fuel consumption
  • MacPherson front suspension
  • Very high fuel consumption
  • Stuck with MacPherson struts in the front
  • Some durability concerns
  • Not very special
  • No manual transmission

Price

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