The landrover G4 Challenge is on this year, and have opened recruitment for U.S. participants to represent their country. Participants will go through a series of challenges, gearing up for the finals that will be held in 2009. This is one of the most serious off-road adventures, a team race spanning across the globe. In 2003, the challenge finale was held in Moab, UT. The race has gone through various rugged and rough terrains in Thailand, Laos, Brazil and Bolivia.
This year's national selections will be held in May, in the Nevada Desert. They claim that the Challenge will be "environmentally sensitive" and fully carbon offset through Climate Care (whatever that means). Don't care how you spin it, you can't really have a totally environmentally clean off-road rampage with vehicles.
Anyway, still a pretty cool adventure race. Registrations and information can be found at www.landroverg4challenge.com