See also:

2013 BMW 6 Series Gran Coupe: First Look
Competes with: Mercedes-Benz CLS-Class, Audi A7 Looks like: A more animated 5 Series ... with a 7 Series price tag Drivetrain: 315-hp, twin-turbocharged 3.0-liter inline-six-cylinder; 445-hp, tw ...

M Dynamics
The 1M's dynamics are typical M — balanced and controllable overall. The car enters turns with practically no understeer, and rear traction can be broken loose through both acceleration and lift. ...

Safety
Both the coupe and convertible have front airbags plus side-impact airbags built into the front seats. As required of all 2012 models sold in the U.S., the 640i has standard antilock brakes and an ...