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:
At a glance
▷ Display the traffic bulletins from radio stations
that broadcast the TI Traffic Information
of a traffic information service. Information
on traffic obstructions and hazards is
updated ...
Changing the scale
1. Select the symbol.
2. To change the scale: turn the controller.
Automatically scaled map scale
In the map view facing north, turn the controller
in any direction until the AUTO scale is displ ...
Digital compass
1. Adjustment button
2. Display
The display shows you the main or secondary compass direction in which you are
driving.
Operating principleYou can call up various functions by press ...