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:
Automatic soft closing
To close the tailgate fully, press down lightly
only. It is closed automatically. ...
Controls
This chapter is intended to provide you with information for complete control
of your vehicle. All features and accessories that are useful for driving and your
safety, comfort and convenience, ar ...
Storing the current speed
Push the lever, arrow 1, or pull it briefly, arrow 2.
Storing the current speed
The system stores the current vehicle speed. It
is indicated on the speedometer and briefly in
the instrument pa ...