Technical specifications
| Clear list | BMW 4er M | BMW 6er |
| Totals | BMW 4er M 3.0 Cabrio × | BMW 6er 4.4 (650i Cabrio) × |
| Mark | BMW | BMW |
| Model | 4er M 3.0 Cabrio | 6er 4.4 (650i Cabrio) |
| Year | 2014 | 2011 |
| Number of doors/seats | 2/4 | 2/4 |
| Body type | Cabriolet | Cabriolet |
| Unladen Weight | 1825 (1865) | 2015 |
| Gross Weight Limit | - | 2390 |
| Top Speed, km/h | 250 (250) | 250 |
| Acceleration 0-100 kph | 4.6 (4.4) | 4.6 |
| Minimum turning radius, m | 6.1 | 5.7 |
| Cargo Volume, min/max, L | 220/370 | 300/350 |
| Dimensions specifications, mm | BMW 4er M 3.0 Cabrio × | BMW 6er 4.4 (650i Cabrio) × |
| Length | 4671 | 4894 |
| Width | 1870 | 1894 |
| Height | 1386 | 1365 |
| Wheelbase | 2812 | 2855 |
| Front/rear Track | 1579/1603 | 1600/1657 |
| Ground clearance | 116 | - |
| Engine specifications | BMW 4er M 3.0 Cabrio × | BMW 6er 4.4 (650i Cabrio) × |
| Type | Gasoline Direct Injection, turbocharging | Gasoline Direct Injection, turbocharging |
| Displacement, cm3 | 2979 | 4395 |
| Compression ratio | 10.2 | 10 |
| Number and arrangement of cylinders | 6 cylinders, in-line | V8 |
| The diameter of the cylinder x stroke, mm | 84х89.6 | 89х88.3 |
| Number of valves | 24 | 32 |
| Power, hp/rpm | 431/5500-7300 | 450/5500-6000 |
| Max torque, Nm/RPM | 550/1850-5500 | 650/2000-4500 |
| Transmission specifications | BMW 4er M 3.0 Cabrio × | BMW 6er 4.4 (650i Cabrio) × |
| Gearbox | 6-speed manual / 7-speed tiptronic | 8-speed automatic |
| Drive Type | Rear wheel drive | Rear wheel drive |
| Suspension specifications | BMW 4er M 3.0 Cabrio × | BMW 6er 4.4 (650i Cabrio) × |
| Front | MacPherson strut | Upper and lower A-arm (double wishbone) |
| Rear | multi-link suspensions | multi-link suspensions |
| Tire Size | 255/40 R18, 275/40 R18 | 245/45 R18 |
| Disk | 5x120 ET20 d72.6
| 5x120 ET20 d72.6
|
| Brakes specifications | BMW 4er M 3.0 Cabrio × | BMW 6er 4.4 (650i Cabrio) × |
| Front | Ventilated discs | Ventilated discs |
| Rear | Ventilated discs | Ventilated discs |
| Fuel consumption specifications, L/100 km | BMW 4er M 3.0 Cabrio × | BMW 6er 4.4 (650i Cabrio) × |
| City | 12.4 (11.5) | 12.4 |
| Highway | 7.2 (7.1) | 6.9 |
| Combined | 9.1 (8.7) | 8.9 |
| Fuel | 95 | 95 |
| Tank, L | 60 | 70 |
| Clear list | BMW 4er M | BMW 6er |
