[jeffrallen]

They are.

But also you come to understand the connection between real world conditions and "km of expected range consumed per real km", which ranges from -0.8 (regen, long downhill, battery ready to receive charge), 1 (flat, 80 kph, 21 degrees outside), and 2 or even 3 (steep uphill with heater or AC on).

Or maybe you do if you're a HN reader... :)