Quote:
Originally Posted by bikegypsy
Aren't all the sets of wheels powered on these trains?
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I'm not sure. Even if they are, the electricity to power those motors comes from the power car. The more motors being driven, the higher the current, the larger the gauge of wire needed. We could have had Alstom design a special, long train power car, but that would cost extra in both materials and design cost (it isn't something that would be useful in other markets, so we would have to pay the full cost).
I guess they could have put two power cars in the train, but as others have said, there are other benefits for having two separate trains.