BMW has officially revealed the new 6-series Gran Coupe, a new athletic 4-door model that BMW describes as a “4+1″, meaning that it has five seatbelts but is basically designed to accommodate four occupants. With a lenght of 5,007 mm and a wheel base of 2,968 mm, the new Gran Coupe turns out to be 11.1 cm longer than the 3-door version it derives from, resulting in more space and comfort in the cabin, especially for the passengers on the rear seats. The car also measures 1,894 mm in width and 1,392 mm in height, making it 10.2 cm longer, 3.4 cm wider and with a roof line 7.2 cm lower than BMW 5-series, while boot capacity is at 460 litres, 60 litres less than the 5-series sedan.

The Gran Coupe is obviously developed on the same platform used by the ‘regular’ 6-series models, also sharing the lightweight aluminum double wishbone(front)-multilink(rear) suspension setup with the rest of the 6-series family. All engines are coupled with a 8-speed automatic gearbox with paddle shifters, five different driving modes (Comfort, Comfort+, Sport, Sport+ and ECO PRO), start-stop system and KERS, and all have top speed restricted to 250 km/h (155 mph). The optional Active Roll Stabilization combines with the standard Dynamic Damper Control to offer the driver even more precise responses and perfectly flat cornering ability. The electronically controlled shock absorbers adjust compression and rebound settings continuously and independently, adapting them to road surface and driver’s style to perfectly control the car’s body behavior. Also worth mentioning is the Integral Active Steering, which combines steering angle movements of both axles to create a virtual lengthening or shortening of the vehicle’s wheelbase, enhancing maneuverability.

The 6 Series Gran Coupe will be offered as three distinct models: the 640d is powered by a 3.0-litre 6-cylinder diesel unit that delivers an output of 308 hp at 4,400 rpm with 630 Nm of peak torque between 1,500 and 2,500 rpm. Its 0-100 km/h (62 mph) run is listed at 5.4 seconds, with a fuel consumption rating of 5.5 l/100km. The 640i is equipped with a 3.0-litre 6-cylinder in-line petrol engine with twin-scroll turbocharging, direct injection and Valvetronic, producing 320 hp between 5,800 and 6,000 rpm and 450 Nm of peak torque. This engine pushes the “640i Gran Coupe” from 0 to 100 km/h n just 5.4 seconds, with average fuel consumption of 7.8 l/100 km. Finally, sitting at the top of the range, there is the upgraded 4.4 litre twin-turbo V8 of the 650i - now with Valvetronic system - delivering 450 hp between 5,500 and 6,000 rpm and no less than 650 Nm of peak torque between 2,000 and 4,500 rpm, with a 0-100 km/h sprint time of 4.6 seconds. This last engine is also the only one that will be available with the four-wheel drive “xDrive” system: in that configuration the “650i xDrive Gran Coupe” goes from standstill to 100 km/h in 4.5 seconds.
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