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:

    Storage compartments in the cargo area
    Net Smaller objects can be stored in the net on the side of the cargo area. To transport larger objects, it can be pushed down. Multi-function hook A multi-function hook is available on the le ...

    Managing the favorites
    Activating/deactivating the favorites Favorites can be activated and deactivated globally and individually. 1. "Satellite radio" 2. "Manage favorites" 3. Select "Activ ...

    Caring for special components
    Light-alloy wheels Use wheel cleaner, particularly during the winter months. Do not use aggressive, acidic, strongly alkaline or abrasive cleaners, or steam jets above 140 ℉/60 ℃; f ...