Gee a SUV full of a family, their pets and all their personal belongs they can carry is bad, but a mini car with one person is OK?
Bye the way, what fuel mileage does your mini car get parked in a traffic jam?
I've noticed with the vehicles we've owned over the years that the miles per tank are about the same. The bigger the vehicle, the bigger the tank, so we can go about as far on a tank in out mini-van as we can in our Accord and we used to in our Escort. Of course, I drive the car as much as possible, but in a situation like this, you'd get about the same distance for most vehicles on a full tank.