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

Technical specifications
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BMW 4er
BMW 6er
Totals BMW 4er 3.0 (440i Cabrio xDrive) × BMW 6er 3.0 (640i Cabrio xDrive) ×
MarkBMWBMW
Model4er 3.0 (440i Cabrio xDrive)6er 3.0 (640i Cabrio xDrive)
Year20172011
Number of doors/seats2/42/4
Body typeCabrioletCabriolet
Unladen Weight19251985
Gross Weight Limit-2400
Top Speed, km/h250250
Acceleration 0-100 kph5.45.4
Minimum turning radius, m5.75.7
Cargo Volume, min/max, L370300/350
Dimensions specifications, mm BMW 4er 3.0 (440i Cabrio xDrive) × BMW 6er 3.0 (640i Cabrio xDrive) ×
Length46404894
Width18251894
Height13991365
Wheelbase28102855
Front/rear Track1543/15931600/1657
Ground clearance145-
Engine specifications BMW 4er 3.0 (440i Cabrio xDrive) × BMW 6er 3.0 (640i Cabrio xDrive) ×
TypeGasoline Direct Injection, turbochargingGasoline Direct Injection, turbocharging
Displacement, cm3 29982979
Compression ratio1110.2
Number and arrangement of cylinders6 cylinders, in-line6 cylinders, in-line
The diameter of the cylinder x stroke, mm82x94.684х89.6
Number of valves2424
Power, hp/rpm326/5500320/5800-6000
Max torque, Nm/RPM450/1380-5000450/1300-4500
Transmission specifications BMW 4er 3.0 (440i Cabrio xDrive) × BMW 6er 3.0 (640i Cabrio xDrive) ×
Gearbox8-speed automatic8-speed automatic
Drive TypeAll wheel driveAll wheel drive
Suspension specifications BMW 4er 3.0 (440i Cabrio xDrive) × BMW 6er 3.0 (640i Cabrio xDrive) ×
Front
MacPherson strut

Upper and lower A-arm (double wishbone)
Rear
multi-link suspensions

multi-link suspensions
Tire Size225/50 R17
225/55 R17
Disk5x120 ET35 d72.6
5x120 ET20 d72.6
Brakes specifications BMW 4er 3.0 (440i Cabrio xDrive) × BMW 6er 3.0 (640i Cabrio xDrive) ×
FrontVentilated discsVentilated discs
RearVentilated discsVentilated discs
Fuel consumption specifications, L/100 km BMW 4er 3.0 (440i Cabrio xDrive) × BMW 6er 3.0 (640i Cabrio xDrive) ×
City9.811.4
Highway5.86.4
Combined7.38.2
Fuel9595
Tank, L6070
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BMW 4er
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