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:

    Overview
    2011 BMW X5 will write the latest chapter in the story of the world's first Sports Activity Vehicle® in the spring of 2010. Originally launched for the 2000 model year in late 1999, the BMW X5 per ...

    Time, date, external temperature
    From radio readiness the external temperature and the time are displayed. Set the time Retrieving date Retrieving date Press the button on turn signal lever upward; the date appears. Set th ...

    1 Series M
    Rather than the single-turbo setup from the 135i, the 1 Series M gets a twin-turbo six-cylinder that's good for 335 hp and 332 pounds-feet of torque. In extreme situations, the 1 Series M can ente ...