DKW RT125 of the 1940s was copied as the BSA Bantam.
To have gear foot lever on the conventional British side, it was made a mirror-image from the original German layout.
No royalties were paid as it was done under war reparation rules.
The Volkswagen Beetle design was also on offer, but turned down by allied nations.
I'm currently trying to get a friend's 1954 DKW RT250 to start and idle reliably, an elusive challenge.
It goes nicely once on the road though.