Speaking as the former honorary adviser to the All Wheel Drive Club, yes, I greenroad a 4*4 whenever I get the chance. Took a borrowed Shogun undamaged through a green lane supposed to be impassable only a month ago - but had to exit early since there was a tree across it 5 feet off the ground a bit further along. Since then the farmer has illegally ploughed (US "plowed") out a bridge over a stream.