That is what the records say, E3 wasn't complete on that day. But there's three different looking tanks being driven around. You might explain away the loss of the partial sand shields, and the track guard toolbins, as simply "bits falling off" over the course of the run, but the antennas too? It's not like they're driving under trees or anything. I think they've been told to put on a show and while E3 wasn't finished it might have been drivable and that's what's in the film. I don't know that I'd put money on it, but that's what it looks like.
