See also:

Calling up the desired speed and distance
While driving Press the button with the system switched on. In the following cases, the stored speed value is deleted and cannot be called up again: When the system is switched off. When ...

Hydroplaning
On wet or slushy roads, a wedge of water can form between the tires and road surface. This phenomenon is referred to as hydroplaning. It is characterized by a partial or complete loss of contact ...

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 an ...