There's a lot going on at the X PRIZE Foundation (new Space Prize, Lunar Lander Challenge approaching, new Space blog), but it isn't all space-related by any stretch of the imagination. Here's another set of Automotive X PRIZE updates:
Cosmic Log recently gave another overview of the Automotive X PRIZE. The big news this time was that Malcolm Bricklin plans to compete for the prize. The vehicle is the "Visionary Vehicles electric plug-in hybrid".
Autoblog also has an update on Bricklin's plans, including the competition.
The Washington Post has an article on the revolution in small auto makers inventing and marketing fuel-efficient cars, in part inspired by the Automotive X PRIZE.