Under the Hood

The 640i is powered by a 315-horsepower, turbocharged 3.0-liter six-cylinder engine. Its peak torque rating is 332 pounds-feet. BMW cites a zero to 60 mph time of 5.5 seconds for both the coupe and convertible. The standard eight-speed automatic transmission includes steering-wheel-mounted shift paddles.

Other standard features include computer-controlled adaptive shock absorbers and Driving Dynamics Control, which allows the driver to adjust the ride quality, accelerator response, power-steering assist level and automatic transmission behavior.

Optional mechanical upgrades include active stabilizer bars and active steering, the latter of which adds rear-wheel steering to the earlier generation's variable-ratio front steering system.

    See also:

    Assistance functions
    Functional requirement ▷ The backup camera is switched on. ▷ The trunk lid is fully closed. Pathway lines Pathway lines ▷ Can be shown in the backup camera image when in tra ...

    Display
    Display 1 Lane departure warning 2 Active Cruise Control 3 Desired speed 4 Navigation system 5 Speed The collision warning, Night Vision pedestrian warning, or Check Control messages are dis ...

    Starting a Service Request
    1. "BMW Assist" or "ConnectedDrive" 2. "Service Request" 3. "Start service" Starting a Service Request A Service Request can be started via a Check Cont ...