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:
Transmission positions
D Drive, automatic position
Position for normal vehicle operation. All forward
gears are available.
R is Reverse
Select only when the vehicle is stationary.
N is Neutral
Use in automatic car wa ...
Opening/closing the sliding visor
► Press the switch in the
desired
direction to the resistance
point and hold it there.
The sliding visor moves while
the switch is being held.
► Press the switch in the desired ...
Pinch protection system
If the closing force when closing the glass sunroof
exceeds a certain value, the closing movement
is stopped, beginning at approximately the
middle of the opening in the roof, or from the
tilt ...
