Compare BMW M6 E64 Convertible vs BMW M8 F91 Convertible vs BMW 6 Series F12 LCI Convertible
Variants
M6
M6 DCT
M8
M8 Competition
640d
640d xDrive
640i
640i xDrive
650i
650i xDrive
Capacity
Cargo Capacity
300 L / 10.6 cu-ft ~ 350 L / 12.4 cu-ft
350 L / 12.4 cu-ft
300 L / 10.6 cu-ft ~ 350 L / 12.4 cu-ft
Coolant Capacity
15.0 L / 15.9 qt
Engine Oil Capacity
10.0 L / 10.6 qt
Fuel Capacity
70.0 L / 18.5 gal
68.0 L / 18.0 gal
70.0 L / 18.5 gal
Passengers
4
4
4
Payload
430 kg / 948 lbs
Chassis
Brakes | Front
Ventilated discs
Ventilated discs
Disc
Brakes | Rear
Ventilated discs
Ventilated discs
Disc
Power Steering
Hydraulic Steering
Electric Steering
Electric Steering
Suspension | Front
MacPherson strut
Double-wishbone
Double-wishbone
Suspension | Rear
Multi-link
Multi-link
Multi-link
Tire Size
255/40 R19, 285/35 R19
Turning Circle
12.5 m / 41.0 ft
12.2 m / 40.0 ft
11.7 m / 38.4 ft
Construction
Body Style
2-door Convertible
2-door Convertible
2-door Convertible
Dimensions
Ground Clearance
123 mm / 4.8 in
Size | Height
1377 mm / 54.2 in
1353 mm / 53.3 in
1365 mm / 53.7 in
Size | Length
4871 mm / 191.8 in
4867 mm / 191.6 in
4894 mm / 192.7 in
Size | Width
1855 mm / 73.0 in
1907 mm / 75.1 in | 2137 mm / 84.1 in (mirror unfolded)
1894 mm / 74.6 in
Track Width | Front
1567.0 mm / 61.7 in
1627.0 mm / 64.1 in
1600.0 mm / 63.0 in
Track Width | Rear
1584.0 mm / 62.4 in
1632.0 mm / 64.3 in
1665.0 mm / 65.6 in
Weight
2010.0 kg / 4431.3 lbs
Wheel Size
8.5J x 19, 9.5J x 19
Wheelbase
2781 mm / 109.5 in
2827 mm / 111.3 in
2855 mm / 112.4 in
Performance
Acceleration | 0 - 100 km/h
4.8 sec
Acceleration | 0 - 60 mph
4.6 sec
CO2 Emission
366 g/km
241 ~ 246 g/km
Coefficient Of Drag
0.34
Fuel Economy
15.2 L/100km / 15.5 MPG (combined) | 22.8 L/100km / 10.3 MPG (urban) | 10.7 L/100km / 22.0 MPG (highway)
Top Speed
250.0 km/h / 155.3 mph
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), All-wheel drive
Emission Standard
Euro 4
Euro 6 d-TEMP
Euro 6
Engine
S85B50
S63B44
Engine | Bore
92.0 mm / 3.6 in
89.0 mm / 3.5 in
Engine | Compression Ratio
12.0:1
10.0:1
Engine | Displacement
5.0 L / 305.1 cu-in / 4999.0 cc
4.4 L / 268.2 cu-in / 4395.0 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
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
Twin-scroll turbocharged direct-injected petrol V8 engine with 4 values per cylinder
Transmission | Gears
8-speed
8-speed
Transmission | Type
Automatic M Steptronic
Automatic Steptronic
Production
Availability
2005 ~ 2010
2019
2015 ~ 2018
Reviews
Neofiliac score
85%
87%
80%
Pros
- Characterful S85 engine
- Great looks with the top down
- Good power delivery
- Rather good performance
- Powerful V8 (perhaps the last from BMW)
- Decent handling
- Luxurious interior
- Slightly improved engine reliability through updates
- Good ZF 8HP transmission
- Good looks
- Good 0.28 drag coefficient
- Double-wishbone + multi-link suspension setup
Cons
- Very high fuel consumption
- Horrible engine reliability
- Does not handle well
- Poor ride comfort
- Reliability concerns
- Unreliable diesel and V8
- AWD nonsense
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