Compare Audi R8 42 vs BMW M6 E63 Coupe vs Alpina B4 F32 LCI
Variants
4.2 FSI 420
4.2 FSI 420 AMT
4.2 FSI 430
4.2 FSI 430 AMT
5.2 FSI 525
5.2 FSI 525 AMT
GT AMT
M6 SMG
B4 S AWD
B4 S
B4 S Edition 99 AWD
B4 S Edition 99
Capacity
Cargo Capacity
450 L / 15.9 cu-ft
445 L / 15.7 cu-ft
Coolant Capacity
25.0 L / 26.4 qt
15.0 L / 15.9 qt
Fuel Capacity
70.0 L / 18.5 gal
60.0 L / 15.9 gal
Passengers
2
4
4
Payload
300 kg / 661 lbs
490 kg / 1080 lbs
Chassis
Brakes | Front
Ventilated discs
Ventilated discs
Ventilated discs
Brakes | Rear
Ventilated discs
Ventilated discs
Ventilated discs
Power Steering
Hydraulic Steering
Hydraulic Steering
Electric Steering
Suspension | Front
Double-wishbone
MacPherson strut
Suspension | Rear
Multi-link
Multi-link
Tire Size
245/30 ZR20, 265/30 ZR20
Turning Circle
11.8 m / 38.7 ft
12.5 m / 41.0 ft
Construction
Body Style
2-door Coupe
2-door Coupe
2-door Coupe
Dimensions
Size | Height
1252 mm / 49.3 in
1373 mm / 54.1 in
Size | Length
4871 mm / 191.8 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
Track Width | Rear
1584.0 mm / 62.4 in
1576.0 mm / 62.0 in
Weight
1710.0 kg / 3769.9 lbs
Wheel Size
8J x 20, 9J x 20
Wheelbase
2650 mm / 104.3 in
2781 mm / 109.5 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
Rear-engine (longitudinal), All-wheel drive
Front-engine (longitudinal), Rear-wheel drive
Emission Standard
Euro 4
Engine
S85B50
Engine | Bore
84.5 mm / 3.3 in
92.0 mm / 3.6 in
84.0 mm / 3.3 in
Engine | Compression Ratio
12.5:1
12.0:1
10.2:1
Engine | Displacement
5.0 L / 305.1 cu-in / 4999.0 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
92.8 mm / 3.7 in
75.2 mm / 3.0 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
6-speed
7-speed
8-speed
Transmission | Type
Automatic
Automatic Switch-Tronic
Reviews
Neofiliac score
86%
78%
81%
Pros
- Wonderful dry sump engines
- Good handling characteristics
- Manual transmission
- Superb, characterful V10 engine
- Beautiful exterior styling
- Good performance
- Good styling
Cons
- AWD-only
- Automated manual transmission
- Awkward styling from some angles
- Horrible engine durability
- Bad SMG transmission
- Very high fuel consumption
- MacPherson front suspension
- Not very special
- No manual transmission
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