I am confused. Is it a Leichtbau Maier or not ? If it is, does this puzzle complete Puzzle #1749 ?
Interisting! I didn't checked as my source gives different infos, almost on all counts! My source mentions indeed a mechanical base, a different year and a slightly different name. So, take it or leave it!
Maybe the different spelling of the name is one reason why it's still a mystery on some online source....
But of course, it seems to be the same car as Otto's #1749