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:
Deactivating DSC: DSC OFF
When DSC is deactivated, driving stability is reduced
during acceleration and when driving in
bends.
Stabilizing interventions by the Integral Active
Steering system are only performed by the r ...
The concept
Night Vision with pedestrian detection is a night
vision system.
An infrared camera records the area in front of
the vehicle and displays the image on the Control
Display.
The picture is a hea ...
Setting
Pull the switch.
The LED lights up.
The indicator lamp lights up red.
The
parking brake is set.
Lower lamp: indicator lamp in
Canadian
models
Set the parking brake and further secure
...