The only feature that is ‘real time’, and therefore requires access to mobile data, is the Collision Alert, which is a small packet of data. So overall, the additional mobile data footprint is minimal. There may be some indirect increase in mobile data consumption at the phone’s ‘system level’ as the phone makes use of location services during Drive Mode.
In the near future we will provide quantitative benchmarks. At this time we recommend to allow an additional 1 to 10 MB per day of active driving, depending on the amount of time you drive while using our Collision Response feature.n