As Pete4 said, within New York few people ever have luggage when taking a cab, so trunk space isn't important. But the Prius and Ford Escape Hybrids both have good luggage space while being very fuel-efficient. Anyway I'm excited by this; during much of the day, more than half the cars on the road in Manhattan are taxis, and it'll be so interesting seeing most of the cars idle silently at intersections or slow traffic. Really neat. Anywhere else, hybrids would be a tiny minority of the vehicles on the road.