See also:

Traction
The traction grades, from highest to lowest, are AA, A, B, and C. Those grades represent the tire’s ability to stop on wet pavement as measured under controlled conditions on specified governme ...

Current fuel consumption
Current fuel consumption Displays the current fuel consumption. You can check whether you are currently driving in an efficient and environmentally-friendly manner. ...

Safety
Both the coupe and convertible have front airbags plus side-impact airbags built into the front seats. As required of all 2012 models sold in the U.S., the 640i has standard antilock brakes and an ...