See also:

The concept
The system is functional at speeds beginning at approx. 20 mph/30 km/h. The speed specified using the lever on the steering column is maintained. The system brakes on downhill gradients if engin ...

X5 Diesel in the Market
From a driver's perspective, the diesel X5 is a worthy effort: quick on its feet and agile when it needs to be, yet comfortable for the long haul. Well-to-do families might still give it a look — ...

Energy recovery
The energy of motion of the vehicle is converted to electrical energy while coasting. The vehicle battery is partially charged and fuel consumption can be lowered. ...