The box-shaped Scions are among the ugliest cars I have ever seen, but I'm married now and need the room. I will have the boss (my wife) give them look. We'er in the market for a car, and both space and gas mileage makes the top 4 - looks don't count!
Jetta TDI wagon... You get your box for stuff, great fuel mileage, and, just in case some punk in a riced-up civic shows up, it's got enough guts to leave the civic in a cloud of dust, er, diesel fumes....
And, it looks better than a Scion ;-)
Get a diesel VW Golf.
It's a hatch like the Scion xB, but with a lot more style, safety features, and interior fit and finish.
Plus a really, really, really great MPG... which you'll actually get in real world driving.