Two competitors - one male, one female - will get the chance to take on other international teams in a three-week sports adventure challenge.
The final of the next event will take place in Asia in 2009, and it is expected to raise more than £1million for the Red Cross and Red Crescent charities.
Land Rover UK MD John Edwards said: 'If you are adventurous, enjoy travelling, driving and adventure sports, the Challenge will provide you with the experience of a lifetime - taking you to some of the most remote places on earth.' Entries can be made at www.landroverg4challenge.com
Entries for the USA close on 03 March 2008