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:
Cameras
The objectives of the Top View cameras are located
at the bottom of the exterior mirror housings.
The image quality may be impaired by dirt.
Clean the lens ...
Operating concept
Various functions can be called up by pressing
the control button with a pointed object, such as
the tip of a ballpoint pen or similar object. The
following setting options are displayed in succ ...
The concept
The Auto Start/Stop function helps save fuel.
The system switches off the engine during a
stop, e.g., in a traffic congestion or at traffic
lights. The ignition remains switched on. The
engine s ...