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:
Arming and disarming the alarm system
General information
When you lock or unlock the vehicle, either with
the remote control or at the door lock, the alarm
system is armed or disarmed at the same time.
Door lock and armed alarm sys ...
Ride & Handling
Both our test cars had the Sport Package, which includes several features
that affect ride and handling, so bear in mind that the base suspension will
perform differently. The package adds an adap ...
Interior rearview mirror, automatic dimming feature
The concept
The concept
Photocells are used for control:
▷ In the mirror glass.
▷ On the back of the mirror.
Functional requirement
For proper operation:
▷ Keep the photocel ...