The BMW 550i xDrive Sedan was an all wheel drive variant of the F10 BMW 550i xDrive that was introduced for the 2010 model year. The 550i xDrive sedan was powered by BMW's N63B44 engine. When first launched, this 4.4L twin-turbo V8 engine had an output of 402hp, but for the 2014 model year, it received a technical update which saw output increased to 444hp. Drive from the engine was sent to all four wheels through a 6 speed manual or 8 speed automatic transmission. Production of the F10 550i xDrive Sedan ended in 2017 when BMW introduced the next generation G30 5 Series.