What this for 1 point
Front Fiat Topolino, back Fiat 500 = interimsmodel
It is based on a Fiat Topolino, but its not any kind of interim model from Fiat.
Up
It's a 1954 Fiat 500 C 4-seat saloon by Carrozzeria Manato of Padua
Goodness that was fast. It is indeed. 1 Point to you. I'd post another picture but there seems to be little info online.
That's the only picture I've ever seen of it.
I know it's on the Wheels of Italy site but I saw it in Alessandro Sannia's Carozzerie Encyclopedia.