I am not sure about the Peugeot, but the Fiats are available in the US. They came in a variety of engine configurations. There was a 1200cc (avoid!) and the first years 1500cc had an OSCA DOHC engine (1959-1962). That was replaced by a 1600cc OSCA (in 1963)and finally, they put the 1500cc standard Fiat engine from the Limousine in it from 1964/65 on). Of this, there was a higher performance "Siata" version available in Europe. The cars to go for are the OSCA engine cars and of these, the later 1600S (for looks, IMO). prices have skyrocketed for these. Concours examples can reach 100k. The 124 Spider replaced that model range.