As of 2015, the 1984 to 1988 C4 Coupe and the 1975 to 1982 C3 Coupe are the most affordable Corvette models, according to About Autos. The 1984 to 1988 C4 Coupe ranges from $5,500 to $10,000, and the 1975 to 1982 C3 Coupe ranges from $9,000 to $20,000.
The 1984 to 1988 C4 Coupe Corvette continues to have the distinction as the cheapest used Corvette on the market. They have high horsepower at up to 250 on some models and are desirable to casual owners for everyday driving. The 1975 to 1982 C3 Coupe has the classic Corvette exterior, but its horsepower is generally lower at between 165 and 230, and some reviewers find its interior design unappealing.