There is a '54 Corvette in Cuba, how about that. There may be as many as 6 1950's Vettes on the island, though it's more a conversational interest than any collectible, as they are far from stock, and won't be sold

and there is also this 58

Auto journalist and former head of the Petersen Museum Ken Gross went to Cuba along with photographer Brenda Priddy and Vinnie Richichi

Photos from http://www.drivetime-radio.com/autoshowsevents/corvettesincuba.html