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:
Closing the windows and glass
sunroof/panoramic glass sunroof
Driving with the glass sunroof/panoramic glass
sunroof and windows open results in increased
air resistance and raises fuel consumption. ...
Malfunction
A Check Control message is displayed.
The parking assistant failed. Have the system
checked. ...
Switch off any functions that are not
currently needed
Functions such as seat heating and the rear window
defroster require a lot of energy and consume
additional fuel, especially in city and stopand-
go traffic.
Therefore, switch off these functio ...
