See also:

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. ...

Check the tire inflationpressure regularly
Check and, if necessary, correct the tire inflation pressure at least twice a month and before starting on a long trip. Low tire inflation pressure increases rolling resistance and thus raises f ...

Ride & Handling
One of my main criticisms of the regular X5, which was redesigned for the 2007 model year, is its regular suspension doesn't offer the balance between ride comfort and handling prowess that I've c ...