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:
Closing
Recessed grips in the interior trim of the trunk
lid make it easier to pull down the lid.
Danger of pinching
Make sure that the closing path of the
trunk lid is clear; otherwise, injuries may ...
Safety switch
The following functions can be locked simultaneously,
using the switch:
Opening and closing of the rear windows
using the switches in the rear.
Operation of the roller sunblinds* using the ...
Pinch protection system
If the closing force when closing the glass sunroof
exceeds a certain value, the closing movement
is stopped, beginning at approximately the
middle of the opening in the roof, or from the
tilt ...