Aaargh, I've come full circle (back to steam truck). Unfortunately my translator only gives me words with more than nine letters (DampfXXXX) for steam truck, steam lorry, steam transporter, etc. I did find one four letter word for truck, wagon, dumper, but my translator doesn't want to mate it with dampf. I'll have to give it a try, as I don't know where else to look. Butenuth Dampflore?