I have heard of the W123 called a "Mercy Tiger" in Indonesia.
"Mercy" being short for Mercedes, I can understand - but "Tiger"...
My two GTO's that I used to own back in the seventies - THEY were "Tigers".
Sunbeam Tiger...(drool...) now there isa Tiger.
But a 123???? I just cant imagine my stolid old tank being called a Tiger.