See also:

Lumbar support
The curvature of the seat backrest can be adjusted in such a way that it supports the lumbar region of the spine. The lower back and the spine are supported for upright posture. ▷ Press ...

Top-class performance from eight or six cylinders: BMW TwinPower Turbo in the new BMW 6-Series Coupe.
One V8 and one six-cylinder in-line engine are available for the new BMW 6-Series Coupe from market launch, and both can claim unique features. These power units are kitted out with BMW TwinPower ...

1 Series M
Rather than the single-turbo setup from the 135i, the 1 Series M gets a twin-turbo six-cylinder that's good for 335 hp and 332 pounds-feet of torque. In extreme situations, the 1 Series M can ente ...