Easy, it is real, I believe it. Think about it, at the airport when these things get pushed back from the gate it is basically a small truck doing that. Low gear ratio, i.e. 4 low and that engine is pretty much a small truck enigne, just what we are sporting in our trucks. VW just had the money for the PR stunt, I bet anything a stock PSD 4x4 with that much weight added to get traction would do the same. Now a nicely tuned PSD may get it fast enough for it to lift off... Try that for publicity...