A few months ago, I changed the “units” to km. Once you do this, you are presented with consumption in L/100km. As I had suspected, those strange steps in mpg are in fact steps of .1 L/100km. Instead of maxing out at 99 mpg, consumption drops all the way to 0. I now often see local 30 mile journeys of 3L or if I recharge at both ends of the journey, 2L. Helped by this feedback, my fuel usage has tumbled and I spot opportunities to engage E mode earlier.Thanks to a short commute and city living I'm now averaging over 99.9mpg over 2000 miles. Pretty good going but I was wondering if there is anywhere the mpg is recorded above 99.9? The app and screen on the car both appear top out at that.