Wheel speed. I don't see a problem with the front strut thought. The sum of the rear wheels. So, for example, if you were looking for more grip on a particular corner, you could look up the data when the dot on the map is at that corner and look at the telemetry there to hunt for problems. If the view is synchronized, it will scroll along with the other views, and lines outside of the selected range will be gray.
nest...