I'm going to go against the grain and say model. I don't see any carb linkage, and the side mirror would be angled more if it was being driven (how's that for a lousy excuse?). I kinda hope I'm wrong though. I mean, what a hairy ride that would be, even if it does look like Bozo the clown should pop out of it at the end of the 1/4 mile!
Stu, it could be a spindle mount and pin drive system. If this thing is real that the person or people who created it are very talented and that kind of system would be a cakewalk. Of course, if it's a model, all bets are off!
Definately a fishy picture though. Clean tires, the sand has no tracks, though they could have cleaned them up for the pic, or Harry could have cleaned them. Yup, I'm definately, almost positively, sorta, kinda, maybe, possibly, going with, ummmmmmmmm, real.........maybe.