The BMW 6-Series Gran Coupé has the proportions of a classic grand tourer coupe with the spaciousness and ease of access of an executive saloon. The Gran Coupé is the most spacious and practical 6-Series ever. This has been made possible by stretching the wheelbase and overall length of the 6-Series Coupé on which it is based by 113mm. The BMW 6-Series Gran Coupé is 5,007mm long, with a wheelbase of 2,968mm.
The most popular derivative of the BMW 6-Series Gran Coupe will be this model which is likely to account for circa 80 per cent of all UK sales. For drivers wanting a longdistance tourer this BMW is possibly one of the world’s most sporting yet luxurious diesels. The all-aluminium 3.0-litre in-line six-cylinder unit in the 640d Gran Coupé records a combined fuel economy of 50.4mpg. With its 70-litre fuel tank it, thus, has a potential range of almost 800 miles, while its CO2 emissions have been pared down to just148g/km. This brings the double benefits of a 22 percent BIK for company car drivers and Vehicle Excise Duty of just £130 a year.
However, in performance terms the luxury model still produces 313hp at 4,400rpm and 630Nm of torque between 1,500 and 2,500rpm. It matches the 640i for acceleration from zero to 62mph with a peak time of 5.4 seconds.
The 3.0-litre in-line six-cylinder engine in the BMW 640i Gran Coupé features direct injection with VALVETRONIC fully variable valve control and Double-VANOS fully variable camshaft control, and has a single twin-scroll turbocharger. With this arrangement three exhaust pipes channel air back to the turbine through one scroll while the other three do the same. In this configuration two streams of exhaust gases keep the turbocharger operating at its optimum.
The result is an engine that develops peak power of 320hp at 5,800rpm, while its maximum torque of 450Nm begins at 1,300rpm and is maintained until 4,500rpm, helping the BMW 640i Gran Coupé to accelerate from 0-62mph in 5.4 seconds. The effortless performance is complemented by combined fuel economy of 36.2mpg, with CO2 emissions of only 181g/km.
A new 450hp 4.4-litre direct-injection V8 in the BMW 650i Gran Coupé is the pinnacle of the three-strong engine line-up. This powerplant develops its maximum power from 5,500 to 6,000rpm, with peak torque of 650Nm remaining constant from 2,000 to 4,500rpm. As with the V8 in the 6-Series Coupé and Convertible, the turbochargers are uniquely positioned in the vee between the cylinder banks with one turbocharger feeding one side of the engine and the other side feeding the other bank.
The new engine has the addition of VALVETRONIC variable valve timing, which improves driveability, performance and efficiency. Thus acceleration from zero to 62mph is accomplished in a mere 4.6 seconds, yet the car is capable of a combined fuel consumption of 32.1mpg and CO2 emissions of just 206g/km.
The BMW 6-Series Gran Coupé is offered in SE and M Sport trim grades, both providing exceptional levels of standard equipment, while an extensive range of active safety features and innovative driver assistance systems are optionally available.
Standard with the 640i and 640d SE models are 18-inch Star-spoke light-alloy wheels, while the 650i has 19-inch V-spoke light-alloy wheel. All models have Dakota leather upholstery, BMW Professional Navigation with 10.2″ high-resolution display, front and rear Park Distance Control, Keyless Go, two-zone climate control, electronic two-way steering adjustment and heated front seats.
M Sport derivatives feature unique BMW M aerodynamic body styling, 19-inch M double-spoke light-alloys, black brake calipers, dark exhaust tailpipes, Sports seats, Anthracite headlining, high-gloss Shadowline exterior trim and Aluminium Hexagon interior trim.
The M Sport derivative is expected to account for circa 80 per cent of all BMW 6-Series Gran Coupé sales.