See also:

5 Series Gran Turismo
For 2010, BMW added a hatchback version of its rear-wheel-drive 5 Series, dubbed the 5 Series Gran Turismo, starting with a 550i "GT" powered by the same 400-hp, twin-turbo V-8 as the 55 ...

General information
The sound settings are stored for the remote control currently in use. ...

BMW X5 xDrive50i: BMW's Twin-Turbocharged V-8.
The new BMW X5 xDrive50i takes its place as the flagship of the X5 family, yielding 400 horsepower at 5,500 rpm and 450 lb-ft of torque at 1,750 - 4,500 rpm from its twin-turbocharged 4.4 liter V- ...