That 3rd size is motorcycle size... Yes, you need special permission to put it on a car. Obviously it's so small that no one will get permission.

The square plates are 34cm, since that's the width of the old plates, but as a square plate really too big... That's asking for trouble isn't it...





and.......




More geniuses: scroll through this thread http://www.autoforum.be/showthread.php?t=39951&page=69