The 2008 Scion xB is exactly 1 foot longer than the last box, 3 inches wider and actually 2 inches shorter in height. This creates a more substantial, less toylike appearance, and a more useful overall vehicle with Scion OEM parts. Under the hood, a 2.4-liter inline-4 engine (it's also used in the Scion tC and Toyota Camry) gives the xB 158 horsepower -- 56 hp more than the previous xB. All of this makes the xB a little more grown up, but there's still enough funk present to make George Clinton proud.