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:
Avoiding unintentional alarms
The tilt alarm sensor and interior motion sensor
can be switched off together, such as in the following
situations:
▷ In duplex garages.
▷ During transport on car-carrying trains, at ...
Intermittent operation or rain sensor
The concept
The rain sensor automatically controls the time
between wipes depending on the intensity of
the rainfall. The sensor is located on the windshield,
directly behind the interior rearview ...
The concept
The Active Protection safety package consists
of systems that are independent of each other:
▷ PreCrash
▷ PostCrash ...
