See also:

Disposing of old batteries
Have old batteries disposed of by your service center or bring them to a recycling center. Maintain the battery in an upright position for transport and storage. Secure the battery so that ...

Remove unnecessary cargo
Additional weight increases fuel consumption. ...

Aerodynamic optimisation of underside panelling
As the excellent drag coefficient (cd = 0.26) would suggest, the aerodynamics of the new BMW 3-Series have been intensively honed in a state-of-the-art wind tunnel. The optimised aerodynamics also ...