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:

    Semi-electrically adjustable seats
    At a glance 1. Thigh support 2. Tilt 3. Forward/backward 4. Lumbar support 5. Height 6. Backrest Tilt Pull the lever and move the seat to the desired tilt. After releasing the lever, app ...

    Clean the windshield, headlamps
    Clean the windshield, headlamps Pull the lever. The system sprays washer fluid on the windshield and activates the wipers briefly. In addition, the headlamps are cleaned at regular intervals ...

    Selecting the calendar day
    1. Select the date. 2. Select the desired day or date. "Next day" "Date:" "Previous day" "Today" ...