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.

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    Service and warranty
    We recommend that you read this publication thoroughly. Your vehicle is covered by the following warranties: ▷ New Vehicle Limited Warranty ▷ Rust Perforation Limited Warranty υ ...

    Instrument cluster
    At a glance 1 Fuel gauge 2 Speedometer 3 Indicator/warning lamps 4 Tachometer 5 Engine oil temperature 6 Electronic displays 7 Reset miles ...

    Manually adjustable seats
    At a glance 1 Forward/backward 2 Thigh support 3 Seat tilt 4 Backrest width 5 Lumbar support 6 Height 7 Backrest tilt Forward/backward Pull the lever and slide the seat in the desired di ...