The 2011 Scion xB is available as a 4-door, 5-seat wagon. Starting at $16,000, the 2011 Scion xB Base (M5) is powered by a 2.4L, 4-cylinder engine mated to amanual transmission that returns an EPA estimated 22-mpg in the city and 28-mpg on the highway. The top of the line 2011 Scion xB Release Series 8.0 (A4), priced at $19,355, is powered by a 2.4L, 4-cylinder engine mated to anautomatic transmission that returns an EPA estimated 22-mpg in the city and 28-mpg on the highway.