Much news this week around CES and MacWorld - other sites like engadget and gizmodo have covered it well, but another big event this week is The Detroit Auto Show, which has been somewhat overshadowed. The most exciting vehicle concept introduced, in my opinion, is the Chevy Volt, a boldly designed plug-in hybrid vehicle. It can run 40 miles on electricity alone, and then the gas engine kicks in as a generator and the vehicle can run for an additional 600 miles. The engine itself can be interchanged for different fuel types, including diesel, ethanol, hydrogen etc. Check out these pictures courtesy of treehugger.

[UPDATE: a close 2nd is the Toyota Hybrid sports car concept for $30k.]