A little nice thing the cars could do is automatically calibrate the speedometer from GPS when on a long stretch of a road. You would get the accuracy of GPS and the reliability of speedometer even when in city jungle, underground, during slow speed manoeuvres etc.
A little nice thing the cars could do is automatically calibrate the speedometer from GPS when on a long stretch of a road. You would get the accuracy of GPS and the reliability of speedometer even when in city jungle, underground, during slow speed manoeuvres etc.