To the range discussion:
For me personally it’s legit to state 10Wh/km for average consumption for range. From an engineers perspective eboards are (almost) all the same regarding efficiency. They all use the same cemistry of batterys, same motor architecture, have similar weight (sure some boards can be double as heavy but in a very small area) and use similar wheels. It’s a very different story for AT wheels, sure! It is not like in cars where you have a 3 ton pickup with 7 liter v8 and a small city car with 1.2 liter turbocharged engine. Differences in architecture (hub, belt, gear) have different pros and cons (less friction but worse heat dissipation for hubs). All in all the equal out themselves in normal testing conditions. At least from my experience. When I’m going for a long ride I’m not bombing all the time. Also I don’t have hills in my area. 10Wh/km is something bioboards, all chinese brands and so on use for their range estimation. So the guys stating here 12Wh/km which is completely fine imho. Look at the reviews of daniel kwan or press reset, when I have that right in mind you can estimate the range by using the Wh of the battery quite accurate (±5% seems ok).
Different story with AT wheels, personally i would half the range for an AT board (20-25Wh/km).
For the speed:
Without GPS it is nothing worth. You could also have lifted up the board, go full throttle and the remote would show 54km/h.
For all the rest stated about facts, claims, talking bs and so on:
You re goddamn right peoples 
But for the range discussion I disagree with you.