Buying an affordable classic car can be more than just a trip down memory lane – it can also be a smart short-term investment. Many budget-friendly collector cars are beginning to appreciate in value, fueled by growing collector interest and nostalgic appeal. Below we highlight some of the investment-worthy vintage cars (a mix of American and European) that you can find for under $20,000. Each offers a blend of charm, heritage, and upside potential over the next 1–5 years.