The white car is a 1963 Corvette Grand Sport and the metallic blue is a 1963 Corvette Grand Sport replica body. The Grand Sport was one of the most iconic of the Corvettes. Only five were produced by GM in the 1960s before the project was scrapped due to a ban on racing. Originally designed by Zora Arkus-Duntov, the car was meant to compete with the Ford Shelby Cobra. This is from an article in Sports Car Digest
The Grand Sport in the Simeone collection is serial number 002 and started life with a coupe body. At some point the top was cut off and the car was made into a roadster, one of only two Grand Sports to have this modification. Both roadsters were originally purchased from General Motors by Roger Penske, at that time a Philadelphia Chevrolet dealer and just beginning his legendary career as racing team owner. The 002 chassis was modified by Penske to fit a monstrous 427 cubic-inch aluminum engine and sold to George Wintersteen of Villinova, Pa. Wintersteen campaigned the car in several events of the 1966 United States Road Racing Championshp. But by that time the car was hopelessly outclassed.
One interesting aspect of the acquisition of the 002 Grand Sport is that it came with a complete, duplicate body and a second engine. The replica body was commissioned by the former owner and mounted on the original chassis frame so that the car could be used in vintage races without damaging the original body and engine. As a result, this Grand Sport is considered the most original of the five.