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:

    Trip computer
    There are two types of computer. ▷ "Onboard info": the values can be reset as often as necessary. ▷ "Trip computer": the values provide an overview of the current ...

    Stowing cargo
    ▷ Heavy cargo: stow as far forward and as low as possible, ideally directly behind the cargo area separating wall. ▷ Very heavy cargo: when the rear seat is not occupied, secure e ...

    Controller without navigation system
    Select menu items and create settings. 1. Turn. 2. Press. 3. Move in two directions. Buttons on controller ...