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:
System limits
Personal responsibility
The high-beam assistant cannot serve as
a substitute for the driver's personal judgment
of when to use the high beams. Therefore, manually
switch off the high beams in ...
Radio
When the same radio source is selected in the
front and rear (e.g., FM/AM), the same radio station
is played.
Operation is the same as for the front radio. ...
Under the hood
Do not work on the car unless you possess the
necessary technical knowledge.
If you are unfamiliar with the statutory guidelines, have any work on the vehicle
performed only by a BMW center or b ...