16. Mercedes-Benz SLK55 AMG (R171)

The Mercedes-Benz SLK55 AMG (R171) delivers muscular V8 performance in a compact, luxury roadster package.
Its naturally aspirated engine provides an exhilarating soundtrack, while the cabin is filled with premium touches and comfort features.
The SLK55 AMG stands out for offering authentic AMG pedigree and thrilling open-top driving at a surprisingly reasonable used price point.
As Drive notes, this roadster blends everyday usability with genuine high-performance excitement—making it a rare gem among used sports cars.