Bought new in December, 1990.
In May, 1991, I drove it to Mid-Ohio, doubling the mileage on it to 800 miles. In my second track session, the starter ring gear came off the flywheel. They replaced the entire clutch under warranty.
In the 51K miles and ~60 track events since then, I've had all the scheduled maintenance done, and I've gone through the usual combination of consumable parts that you expect to wear out (tires, brake pads, tires, rotors, tires, clutch, tires, battery, tires, shocks, tires, trunk struts, tires, engine hatch struts, and tires). I had the window fix-it thingies installed, replaced a wheel bearing, and had the stereo amps fixed on both sides - all minor and inexpensive. All in all, given the miles and particularly the track usage, I think reliability has been great.