I can beat you all! I met a guy at the Brooklands Italian car day last year who collects FIATs for a hobby.
He claimed to have a totally original '95 in the Orange launch colour with (iirc) 1200 miles on the clock - most of them have been racked up going for its annual service!
Along with the b he had a 4x4 Panda, a 126, a 131 mirafiori, Strada Abarth, Coupe and a host of other cars - I have to admit I did not believe him until he produced a handful of piccies of his cars in storage!