Electric motors are perfectly suited for powering cars. Ideally you would want a relatively small battery pack under the floor of the car, and four small but powerful electric motors close to each wheel. Great packaging options, low noise levels, no need for big, heavy transmission would be the main benefits of this design (apart from the lower pollution levels).
The battery continues to be the weak link here. Heavy acceleration, high speed, lights and climate control systems drain the pack very quickly, dramatically limiting range (Nissan Leaf) or requiring a back-up engine (like in the Volt).
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