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:

    Engine oil
    The engine oil consumption is dependent on driving style and driving conditions. Checking oil levelYour car is equipped with an electronic oil-level monitor. For precise measurement and display of t ...

    General information
    The vehicle is supplied with two remote controls with keys. Every remote control contains a replaceable battery. The settings called up and implemented when the vehicle is unlocked depend on w ...

    Swapping the telephone and additional telephone
    The function of the telephone and additional telephone can be swapped automatically. 1. "Telephone" 2. "Bluetooth® (phone)" 3. "Swap phone/addit. phone" ...