BMW 8 Series – Powertrain
In the RM1,088,800 BMW M850i xDrive lies BMW’s newest V8 engine. The twin-turbocharged 4.4-litre V8 engine generates 530 hp at 5,500 to 6,000 rpm and a colossal 750 Nm of torque from 1,800 to 4,600 rpm. Electric blow-off valves have been integrated into the compressor housing to deliver superb turbocharger sounds.
The large displacement V8 engine that has a very linear power delivery also sounds ferocious thanks to a sports exhaust system, which can be quiet down for a civilized drive around the neighbourhood.
In the BMW M850i xDrive, the transmission is an eight-speed Steptronic Sport transmission with shift paddles and Launch Control function.
The bodyshell of the BMW 8 Series shares similarities with the 7 Series sedan, with large pieces of strong yet light-weight carbon-fibre reinforcement panels used at the centre tunnel area as bracing.
The front suspension features a double-wishbone setup, while the rear axle uses a five-link layout.
Adaptive M suspension and Integral Active Steering are standard in the BMW 8 Series. Ride comfort is an exception in the big grand touring, as well as body control when one starts taking the bends with more speed. The Integral Active Steering or rear-wheel steering helps shorten the “virtual” wheelbase of the 8 Series, by turning in the opposite direction at speeds of up to 88 km/h, and then in the same direction as the front wheels at higher speeds for utmost stability and steering response.
Further rear wheel grip and agility is compounded by the M Sport differential, where an electronic system variably controls the independent torque levels of the left and right rear wheels. Delivering more torque to the outside wheel with more grip enhances traction out of the corner.
The G15 BMW 8 Series is now fitted with the xDrive all-wheel drive system. Predominantly rear-wheel drive, xDrive can automatically deliver torque to the front wheels, with higher dynamic handling traits in the Sport and Sport+ driving modes.