That is slightly incorrect information. Mid America bought the car from the defunct museum in Cooperstown NY (that's also where RockCrusher67's Maco came from). Mid America loaned it to the Corvette Museum for the "Corvettes of Hollywood" display, but that was just for a short period of time.
There has been talk that the 2nd Corvette Summer car is down in Australia.
There are also a couple of clones of the car.
http://www.makoshark2.com/dcforum/DCForumID11/47.html
http://www.makoshark2.com/dcforum/DCForumID11/48.html