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By 91TTZ on 11/9/2012 6:22:11 PM , Rating: 2
Installing a more powerful electric motor is more likely to decrease fuel economy. The article didn't say "more efficient" electric motor.

Also, giving it increased battery capacity shouldn't increase the MPG that the car gets on gasoline.

By Philippine Mango on 11/10/2012 6:57:57 PM , Rating: 2
A more powerful electric motor would allow the car to drive more often with the engine off. They also could be asking for more powerful batteries and electric motor to boost its hp ratings. While driving faster and harder won't be good for fuel economy, if you're easy on the car, then the larger electric motor will mean a more efficient electric motor as well. I'm not really sure how Toyota expects to achieve 60mpg but I guess that number is possible for city fuel economy instead of highway fuel economy.

