All of the engines feature an aluminium construction, optimised thermodynamics and cutting-edge BMW TwinPower Turbo technology. One four-cylinder and one six-cylinder in-line petrol engine, plus a straight-six diesel unit will be available for the new BMW 6-Series Gran Turismo from launch. And as an alternative to classical rear-wheel drive, the two six-cylinder variants can also be specified straightaway with BMW xDrive intelligent allwheel drive.
The package of technology for the petrol engines is made up of TwinScroll turbocharging, High Precision Direct Injection, VALVETRONIC fully variable valve control and Double-VANOS variable camshaft timing. New engine encapsulation reduces noise and accelerates warm-up for both units. The four-cylinder of the new BMW 630i Gran Turismo generates output of 190 kW/258 hp from its 2.0-litre displacement and peak torque of 400 Nm (295 lb-ft) between 1,550 and 4,400 rpm. It powers the car from 0 to 100 km/h (62 mph) in 6.3 seconds, and posts combined fuel consumption of 6.6 - 6.2 litres per 100 kilometres (42.8 - 45.6 mpg imp) and CO2 emissions of 152 - 142 grams per kilometre (figures according to the NEDC test cycle, may vary depending on the tyre format specified).
The 3.0-litre six-cylinder in-line petrol engine under the bonnet of the new BMW 640i Gran Turismo and new BMW 640i xDrive Gran Turismo generates maximum output of 250 kW/340 hp and puts peak torque of 450 Nm (332 lbft) on tap between 1,380 and 5,200 rpm. The result is 0 to 100 km/h (62 mph) in 5.4 seconds, or 5.3 seconds for the xDrive variant. The combined fuel consumption of the two models is 7.4 - 7.0 litres per 100 kilometres (38.2 - 40.4 mpg imp) and 8.2 - 7.7 litres per 100 kilometres (34.5 - 36.7 mpg imp) respectively. CO2 emissions come in at between 169 and 159 grams per kilometre / 187 and 177 grams per kilometre (figures according to the NEDC test cycle, may vary depending on the tyre format specified).
The 3.0-litre six-cylinder in-line diesel engine with 195 kW/265 hp and peak torque of 620 Nm (457 lb-ft) between 2,000 and 2,500 rpm can likewise be specified with all-wheel drive as an option. This power unit has turbocharging with variable inlet geometry and common-rail direct injection, whereby piezo injectors working with a maximum pressure of 2,500 bar ensure exceptionally precise fuel metering. The new BMW 630d Gran Turismo powers from 0 to 100 km/h (62 mph) in 6.1 seconds, the new BMW 630d xDrive Gran Turismo in 6.0 seconds. Combined fuel consumption and CO2 emissions are 5.3 - 4.9 litres per 100 kilometres (53.3 - 57.7 mpg imp) and 139 - 129 grams per kilometre for the BMW 630d Gran Turismo and 5.9 - 5.5 litres per 100 kilometres (47.9 - 51.4 mpg imp) and 155 -144 grams per kilometre for the BMW 630d xDrive Gran Turismo (figures according to the NEDC test cycle, may vary depending on the tyre format specified). Both model variants feature emission-lowering BMW BluePerformance technology, which comprises a particulate filter, an oxidation catalyst, a NOX storage catalyst and an SCR catalyst with AdBlue injection for additional NOx reductions.
Underneath the skin is more existing BMW technology. The 6 Series Gran Turismo will only be offered in a 640i trim level upon introduction. This means it will have a twin-turbocharged 3.0-liter inline-6 making 335 horsepower and 332 pound-feet of torque. The engine is coupled to an 8-speed automatic. BMW's claimed 0-60 mph time of 5.1 seconds is slightly slower than the equivalent 540i sedan's 4.9-second sprint. The engine is backed up by a double-wishbone front suspension and standard multilink air suspension in the rear. Adding the Dynamic Handling Package will also add air suspension to the front, adjustable ride height, Active Roll Stabilization, and rear-wheel steering.
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