Quote:
Originally Posted by dcb
...and you have extra weight (motor + generator) to carry all the time.
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But that doesn't have to be a lot of extra weight, since the IC engine doesn't have to be all that big. Same logic as regular hybrids, but carried further: you can make the engine smaller, with battery & electric motor providing power for acceleration. Instead of a couple of hundred horsepower from the IC engine, most of it only used when starting or hill climbing, you only need maybe 10-20 hp to run at highway speed on level ground.