The flagship model – until the rumored M760Li arrives – is the 750Li, the long-wheelbase version powered by an V8 engine under the hood. In the U.S., BMW sells the 750i xDrive model which is in fact the long-wheelbase version.
The 750Li is fitted with a revised 4.4 liter TwinPower twin-turbocharged V8, with the turbos mounted in between the v-shaped cylinder bank, and will develop 445 horsepower and 480 lb-ft of torque which will be available at 1,800 rpm. This revised V8 is also a ULEV (Ultra Low Emissions Vehicle) and is far more efficient than the outgoing model’s.
BMW managed to do this by changing the compression ratio, from 10:0:1 to 10:5:1 and the addition of the latest Valvetronic and Double Vanos systems. This engine also marks the first time in a production car that the intake manifold has been partially integrated into the cylinder head, allowing for less airflow resistance and smaller exterior dimensions.
While many customers won’t take the 7er limousine into the mountains, BMW showed us that the flagship model is more than capable to handle the snow and off-road terrain.