American Sports Car Trivia (no LBC)

["Scott Gardner" <gardner7@pilot.infi.net>]

Here's a trivia question that won me a beer a few months back...

What American sports car or sport coupe has been in continous 
production the longest?  (I include "sport coupe" in the question so 
that we don't get hung up on the whole two-seater vs. four-seater 
debate.)
        BTW, I'm not sure if the car I'm thinking of has been carried over 
to 1998, so base your answer on cars available in 1996.
Scott