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:

    Redialing
    General information The list of dialed numbers in the mobile phone is transmitted to the vehicle depending on the mobile phone. The 20 phone numbers dialed last are displayed. The sorting order ...

    Display
    Night Vision with pedestrian detection is not available on the rear screen*. Settings via iDrive With Night Vision switched on: 1. Activate Night Vision with pedestrian detection. 2. Press the c ...

    External temperature
    External temperature warning If the display drops to +37 ℉/+3 ℃, a signal sounds. A Check Control message is displayed. There is the increased danger of ice. Ice on roads Even ...