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:
Safety
Neither the Insurance Institute for Highway Safety nor the National Highway
Traffic Safety Administration has tested the 2007 X3. Standard safety features
include four-wheel-disc antilock brakes, ...
Adjusting
Vehicle
...
Front
Seat heating
The temperature setting progresses one step
through its control sequence each time you
press the button. The maximum temperature is
reached when three LEDs are lit.
To switch of ...
