@"System"/Range etc
You're forgetting one small detail.
Take one internal combustion powered and one electric powered vehicle, run both across their full range, until both are empty. Yes, you may get a similar distance.
Now comes the crunch. Recharge time.
At the same time you plug the electric car in, start to fill the internal combustion vehicle with fuel.
Five-ten minutes later, when the internal combustion vehicle's full of juice, unplug the electric car.
Let's go...
Mind if I take the internal combustion vehicle for this second round?
I doubt you'll get off the bottom of the motorway sliproad - whilst I'll be ready for another full range.