Only FIAT Group cars are allowed at the training ground parking lot, so I guess a lot of the players drive FIATs/Alfas/Ferraris/Lancias/Masseratis, at least to training.
Del Piero had E36 M3. He likes BMWs. Thats been said he had/has Ferraris.
I think that he had 550 Maranello. Who knows maybe he owns one of those rare 399 Enzos.