How do their calculations work ? Do they take into account the number of people the vehicle is designed for ? I mean, yes a bus is a gas guzzler but when you divide by 40 passengers, it's way much better than if each one were to drive his own car. A van has lower mpg than a Tercel, but the main reason for getting a van is to be able to carry more passengers. Is CAFE taking this into account in the calculations ?