That is still not viable. You are still thinking in terms of going 300 miles and getting your energy "fix" by filling your tank in 2 or 3 minutes before resuming the trip. When you have exhausted the 300 mile range, you will have to stop your travel for 4-6 hours minimum before having a go at the next 300 mile increment. The trip I make from Pocatello to San Diego is 927 miles. I can do that in 3 stops before a fillup at the destination. It's a 15 hour drive with a gasoline powered car. The electric would add another 24 hours of end to end time to allow for the recharge intervals.
At my age,if I drive 300 miles from home, then stopping for a few hours rest wouldn't be so bad!
:)
But I understand what you mean.