“As long as no other people are expecting 10 minute charging in the same area.”
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The trunk is big enough to carry a generator—gasoline-powered, of course...
A trunk is never big enough to carry an ADEQUATE generator. It takes more horsepower in the generator than the car would need for adequate range and acceleration on its own. It needs even more, because of the losses in generating electricity. You would need to add the weight and gasoline capacity of this powerful motor and generator set in order to become simply adequate.