Just waiting for my Italian imported 1971 500F to be registered which should hopefully be in the next couple of weeks. When I get the documents back I then need to get some number plates.
Can anyone help with what size I need? Guessing the front is standard size but what size is the rear? Also, do I need black and silver front and rear???

Italian plates are ~11x3" front and 11x8" rear. For a 1971, yes you can fit black background plates.

A recent thread will give you some pics of what people have done...

https://www.fiatforum.com/500-classic/426723-first-registration.html

Cheers Steve, much appreciated.