Where I live, it's basically flat and the longest distance one way is about 50 miles. Aside from that, stop and go, short trips, inner city, all the stuff that tears an ICE up and wastes gas.
I look at how I drive and the most that I do now is 73 mph, and in the city 43-45 mph.
I was curious since most things can be done with an electric, but considering it gets stupid cold in Chicago during the winter, I did not know whether the power draws from the heater and other electrical components might be a bit much, hence the onboard genset.
Hey, what can I say, little kiddies make a man think of a backup.
In an ideal world, 75-100 miles on a charge should be enough.