Four wheel drive vehicles enable folks to go many places off-road that regular cars and trucks can't go, including through mud, over rocks, etc. Pretty handy if you need to go places like that. When it comes to anything with wheels, human nature, at least here in North Carolina takes over and it doesn't take long for someone to figure a way to take the capabilities of these trucks and make them do it really fast and very loud. A big ditch full of water and red mud and have at it full bore.
(Photographs copyright 2011 by Dan Routh)