Well. according to my Odo...second one mind you as the original 140MPH speedo died (still have it for future rebuilding). The car had 97,000 when my wife purchased it as a birthday gift for me. the new odo says 74K...so lets see, I have been driving backwards for about 23K miles.....hmm....
In reality it has been about 2K per year on a good year. this last year wasn't so good and it only did about 500 - but it spent time getting new U joints, SS brakes, intake, 600CFM Holley, blueprinted distributor, chambered exhaust, KYB shocks....all of which really woke it up! the rest of my Corvette summer was running my 1986 Corvette in SCCA time trials and hillclimbs (3 events/3 wins).
Geez I love Corvettes.....any year, any type, any color....some are clearly more desirable than others, but the worst i have ever driven was magnificent.
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C3: 1979 Corvette Coupe, Auto, L-48, Red/Doeskin (my wife's fave);
C4s: 1986 C4 coupe (SCCA road race car), satin black, 4+3, Z51 package, L-98; & 1993 C4 coupe, white, 6-speed, LT-1.