The xB's coefficient of drag (Cd) is .35. According to InsightCentral, a Honda Civic hatchback (prior generation) has a Cd of .36, and the '06 Hybrid's Cd is .28. The Insight's Cd is .25, for comparison. A VW Beetle can manage .38. Light trucks typically have a Cd from .40 to .45. So, although the xB looks very boxy, it seems to do fairly well in the wind tunnel.

Steve Villatoro
www.stevenvillatoro.com
“An enlightened guide to small business mastery.”