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Every Prius has at least 2 electric motors. In the typical Prius, it's the larger of those two, MG2 that drives the wheels. But the power that the battery system can deliver is pretty wimpy in most hybrids, because you can run the engine to generate additional electricity when you need it.

True, but AFAIK, only one propels the car without the ICE, the other is used in conjunction with the ICE to control the gearing for the ecvt.

The "Chery QQ Ice Cream" has a curb weight of only 743 kg. The lightest Prius seems to be 1,390 kg.

That's pretty cool to know. The Tata Nano is likely a fair bit lighter though, to the extent that when 4 adults were sitting in it, you really felt it.