The C3 still holds the record for the longest production run of any generation Corvette. It was the generation that saw the Corvette "grow-up" from being a powerful track car and Le Mans racer to an iconic sports car synonymous with the American Dream.
The early C4's had their problems, what with the 1984 Cross-Fire Injection and its unusual 4+3 manual transmission. By the late 1980's, the fourth-generation Corvette had evolved into a more desirable automobile, thanks in part to the arrival of the ZR-1.
Built from 1997 until 2004, the C5 Corvette is considered one of the most reliable. Given its increasing affordability, the C5 offers a lot of power and performance at great value. How its maintained and cared for can dramatically affect the overall quality.
The C6 is truly a track-capable beast that offers incredible power at an affordable price. When developing the sixth-generation Corvette, Chevrolet adopted the mantra, "If it ain't broke, don't fix it." For all intents and purposes, it was an evolution of the C5.