I think Range is just your recent consumption divided into 80 (or multiplied by 80 for you Brits because your consumption is inverted). So for example my overall consumption since new (~3000km) is 21.3 kWh/100km which would give a range of 80/21.3*100 = 375km. Using arturner51's numbers for a Brit example.... 80*2.8 = 224 miles.
So it probably makes more sense to focus on your consumption numbers than your range, as range is just a consequence of consumption, and you can monitor consumption on the fly, not just when you've filled up. There are two excellent trip meters to help with that ("From Start" and "Since Reset") as well as a display for instantaneous consumption. "From Start" auto-resets whenever the car has been parked for > 4 hours, so it's useful for data on your current journey and will nicely span breaks etc. Once you've stopped for more than 4 hours it deems that your next trip to be a new journey and automatically starts afresh. "Since Reset" only resets when you use manually reset it. I reset that one each time I top up, and I rarely take it to 100% unless I'm about to launch on a trip.
Another useful display is the consumption display. It will show you how much energy is going into propulsion Vs the 12V system Vs heating/cooling.
Once underway, the instantaneous consumption gives you a live reading of kWh/100km (or probably miles/kWh for you Brits) but it has a neat feature whereby when you've stopped, even briefly at lights, it tells you how much power it's sucking just sitting there... 900W in this case. I have seen that as high as a few kWs on first start for the day, as it recharges the 12V lead acid battery, but typically only for 10 or 15 secs. That behaviour is very much like an alternator in an ICE vehicle.. it tends to do most of its work immediately after starting.. where you'll sometimes even hear the fanbelt squeal as it brings the 12V battery back up to charge (happily no fanbelts or alternators in EVs)
