First introduced in 2003, The Scion xB is a 5-door wagon with a one-piece rear liftgate. Its top competitors are the Honda Element and the Chevy HHR. The 2010 Scion xB is a good choice for urban drivers who require convenience, maneuverability, affordability and fuel efficiency. Although compact, the Scion xB has plenty of cargo space and a back seat comfortable enough for three adults. Like other Scions, the xB comes well-equipped. No factory options are available (other than automatic transmission), yet there are numerous dealer-installed accessories available for customization. MSRP starts at under $16,000. Mileage averages 22 mpg city and 28 mpg highway.