I'll mention who I know as either having a Corvette now or use to own one. You might have to do a little research to see if these people currently have one.
John McCain
Tim Allen ("Tim the Tool Man Taylor")
Mario Andretti (ZR1 serial #500) Go figure on the serial #...
Paul Tuetul Sr (of Orange County Chopper fame)...a ZR1 and Z06.
Jimmie Johnson, Jeff Gordon, Dale Jr. (all ZR1's)
Sharon Stone
And of course, numerous Astronauts...of Mercury, Gemini, Apollo and Space Shuttle fame. We currently have two active Astronauts in the Cape Kennedy club.
Zang!!