See also:

Close the windows and glass sunroof
Driving with the glass sunroof and windows open results in increased air resistance and raises fuel consumption. ...

INTERIOR
The X5's interior lives up to luxury standards; it's not flashy, but the quality materials used inside and the attention to detail tell you it's no ordinary vehicle. My test car had upgrades like ...

Tires
Due to technical factors associated with their manufacture, tires do not achieve their full traction potential until after an initial breaking-in period. Drive conservatively for the first 200 mi ...