SimonKNo. This forum is getting silly.
Either way, it's a no from me.This is the type of rubbish that has turned the Battlelog forum into an unbearable pit of useless threads, Trolls and immaturity. I hope sure GTP isn going the same way. Im surprised a few of you credited this thread with a serious response, As i feel it was very doubtful the OP was being serious when he posted it.
To be honest I don't actually see what's so silly about this idea, they were in Toca 3, and Monster Truck racing is a genuine motorsport. However, I struggle to see it in GT, although I can easily imagine it's inclusion in Forza.