BMW 6 Series Specs, Engines & Dimensions (2017–2020) — Fourth Generation
The fourth-generation BMW 6 Series adopts a liftback body, blending a long, low grand-touring profile with a wide-opening rear hatch. It is a comfortable, fast tourer built for covering long distances without strain.
A typical BMW 6 Series engine is a smooth six-cylinder gasoline unit, as in the 640i 3.0 AT, paired with an automatic transmission and rear-wheel drive. The 640i 3.0 AT xDrive adds an all-wheel-drive drivetrain for surer traction, while the 620d 2.0 AT is a four-cylinder diesel favouring economy on long motorway runs.
BMW 6 Series trim levels sit on top of a technical version rather than replacing it. The 640i 3.0 AT xDrive, for example, appears as 640i xDrive and 640i xDrive Luxury Line Plus: mechanically the same car, differing in interior detailing, upholstery and convenience equipment, so check each listing individually.