1. Mercedes-Benz 300 SLR

The 1955 Mercedes-Benz 300 SLR Uhlenhaut Coupé is the most expensive car ever sold. In 2022, it set a record price of $142.7 million. Only two cars were built, with a light magnesium body, signature gullwing doors, and Formula One technology. For decades, it stayed in Mercedes’ private collection.