Scion Xb : (Photo) The boxy Scion xB, dubbed an “urban utility vehicle”, has been the brand’s cornerstone model with the broadest appeal among Scion buyers. The xB is powered by a 158-hp 2.4-liter four-cylinder engine, mated to a five-speed manual transmission. A four-speed automatic transmission with manual shift mode is optional, and both gearboxes [...]