Thanks, yeah a ram is a good idea but I have a seven year old and he's already managed to clonk this off his head while we were mucking about with it. First Blood to the BattleCar.
I keep thinking of making some more so maybe if the notions strong I'll give the next one made a spiked ram. It would be cool to play a Forum Battle with these in a massive industrial wasteland. I have the Lego but like I said time is an issue.