1. Mazda Miata (1990-2005): Often regarded as one of the best-handling affordable sports cars, the Miata is lightweight, fun to drive, and offers good fuel economy.
2. Nissan 350Z (2003-2009): A popular V6-powered rear-wheel-drive coupe or convertible, the 350Z provides sporty performance and timeless design.
3. Toyota MR2 (1984-2007): Known for its nimble handling and rear-mid-engine layout, the MR2 combines compact proportions with playful dynamics.
4. Porsche Boxster (1996-2004): Offering the allure of Porsche engineering and open-top motoring, the Boxster is a relatively accessible entry into the prestigious sports car brand.
5. BMW Z3 (1996-2002): A stylish roadster, the Z3 provides classic BMW handling and the option of either four- or six-cylinder engines.
6. Honda S2000 (1999-2009): Renowned for its high-revving four-cylinder engine and precise handling, the S2000 is highly regarded enthusiasts' sports car.
7. Chevrolet Corvette C4 (1984-1996): While older generations of the Corvette can be relatively affordable, the C4 introduced improvements in quality and refinement during its production run.
8. Ford Mustang (1964-1970): Iconic American muscle car with various options from convertibles to fastback versions. Depending on the condition and performance specifications, older Mustangs can present different budget levels.
9. Datsun/Nissan 240Z (1970-1978): A stylish and influential Japanese sports car of its time, known for its attractive lines and affordable performance.
10. Triumph TR6 (1969-1976): Classic British roadster combining classic looks and agile handling with a six-cylinder engine.
Overall, it's essential to factor in maintenance and running costs, local market conditions, and the specific condition of these older sports cars before making a purchase decision. Always conduct thorough research and seek professional advice to validate the condition and suitability of a used sports car before committing to it.