Depends on your needs. If you live a good distance from town, you actually get better mileage out of a Prius. Smart Cars are designed to get hybrid type mileage during in town driving.
Lived in Europe for a few years and this isn't true. They have 4 passenger models. I've seen them and families in them. Never been in one though. But we were amazed of the size some of the guys were that drove them....DH is close to #250+, some of the guys getting out of them were his size! I'd be ok with one if I lived in the city. Not too sure I want to drive into town too far in one, though.The downside, to me, is you can only fit one passenger. But there is a surprising amount of space behind the seats for groceries, etc.
And for the size of the car, this is really disappointing... Shoot, I have a 12 year old Metro that does better than this! :shrug:With a combined mpg of 36, it's not all that great.