Scion held a launch event in San Francisco for its updated xB and all-new xD. Scion cars rolled into showrooms across the country only three years ago, and the unique shape of the xB gave the new brand immediate iconic status. For the 2008 model year, the xB gets a significant remake. Scion also dropped its xA model completely, replacing it with the xD. The new xB is hitting showrooms now, while the xD rolls out in a few months.