Sorry for jumping in again, but it's not a Fiat factory car. I've found your source, I know it has this car as simply 1952 Fiat 1100 Barchetta, but isn't it a Stanguellini maybe? Surely one of the etceterinis.
(I'm not telling you SACO doesn't get this point, as he gave you what you were looking for, just for the sake of accuracy)