That may be what they did, but would that hold up in court? Is a typo a valid way to get around a trademark? Try opening up a fast food restaurant, call it BERGER KING and have the EXACT same colors and mascot as BURGER KING. Then when you get sued and shut down, try to say "oh, but it was BERGER". They've put a likeness of a Lister car on the strike, misspelling the name shouldn't take away trademark liability. I bet if Lister contacted them and threatened to sue they would pull that strike in a heartbeat, they wouldn't say "oh no, it's a Listor, not a Lister..."

Dave.