9. Floyd Mayweather
Known as ‘money’ Mayweather, this boxer definitely earns millions and knows how to live the good life. As the best pound-for-pound boxer for many years, Mayweather has managed to build a crazy collection of cars that can make any car enthusiast envious. Some of the best cars that are part of Mayweather’s collection are Bentley Mulsanne, Ferrari 458 Spider, Mercedes Benz S600, Ferrari F430 and Lamborghini Murcielago to name just a few. Mayweather is not yet officially retired, so you can expect that this collection will definitely grow bigger in the next few years!