Display of inclination (rise/slope) and lateral inclination of the vehicle, based on the sensors of the used cell phone. Both values should be switched on separately. If the cell phone does not provide these values, the options are grayed out.

This can be used to optimize fuel consumption or for off-road safety.

The display should be in quasi-analog form, e.g. as a rotating wheel or as a pointer on a fixed scale to get a feel for the rate of change.