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Compare BMW 6er 3.0 (640i Cabrio xDrive) and BMW 4er 3.0 (440i Cabrio xDrive)

Technical specifications
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BMW 6er
BMW 4er
Totals BMW 6er 3.0 (640i Cabrio xDrive) × BMW 4er 3.0 (440i Cabrio xDrive) ×
MarkBMWBMW
Model6er 3.0 (640i Cabrio xDrive)4er 3.0 (440i Cabrio xDrive)
Year20112017
Number of doors/seats2/42/4
Body typeCabrioletCabriolet
Unladen Weight19851925
Gross Weight Limit2400-
Top Speed, km/h250250
Acceleration 0-100 kph5.45.4
Minimum turning radius, m5.75.7
Cargo Volume, min/max, L300/350370
Dimensions specifications, mm BMW 6er 3.0 (640i Cabrio xDrive) × BMW 4er 3.0 (440i Cabrio xDrive) ×
Length48944640
Width18941825
Height13651399
Wheelbase28552810
Front/rear Track1600/16571543/1593
Ground clearance-145
Engine specifications BMW 6er 3.0 (640i Cabrio xDrive) × BMW 4er 3.0 (440i Cabrio xDrive) ×
TypeGasoline Direct Injection, turbochargingGasoline Direct Injection, turbocharging
Displacement, cm3 29792998
Compression ratio10.211
Number and arrangement of cylinders6 cylinders, in-line6 cylinders, in-line
The diameter of the cylinder x stroke, mm84х89.682x94.6
Number of valves2424
Power, hp/rpm320/5800-6000326/5500
Max torque, Nm/RPM450/1300-4500450/1380-5000
Transmission specifications BMW 6er 3.0 (640i Cabrio xDrive) × BMW 4er 3.0 (440i Cabrio xDrive) ×
Gearbox8-speed automatic8-speed automatic
Drive TypeAll wheel driveAll wheel drive
Suspension specifications BMW 6er 3.0 (640i Cabrio xDrive) × BMW 4er 3.0 (440i Cabrio xDrive) ×
Front
Upper and lower A-arm (double wishbone)

MacPherson strut
Rear
multi-link suspensions

multi-link suspensions
Tire Size225/55 R17
225/50 R17
Disk5x120 ET20 d72.6
5x120 ET35 d72.6
Brakes specifications BMW 6er 3.0 (640i Cabrio xDrive) × BMW 4er 3.0 (440i Cabrio xDrive) ×
FrontVentilated discsVentilated discs
RearVentilated discsVentilated discs
Fuel consumption specifications, L/100 km BMW 6er 3.0 (640i Cabrio xDrive) × BMW 4er 3.0 (440i Cabrio xDrive) ×
City11.49.8
Highway6.45.8
Combined8.27.3
Fuel9595
Tank, L7060
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