1: Meet LeBron James and his $670,000 Lamborghini Aventador.

2: Cristiano Ronaldo's car collection includes a $4.9 million Bugatti La Voiture Noire.

3: Lewis Hamilton's Mercedes-Benz Project One is valued at $2.7 million.

4: Floyd Mayweather splurged on a $4.8 million Koenigsegg CCXR Trevita.

5: Serena Williams admires her Bentley Continental GT worth $255,000.

6: Tom Brady owns a $430,000 Rolls-Royce Ghost.

7: Ronda Rousey's BMW i8 costs $150,000.

8: Dale Earnhardt Jr.'s Chevrolet Corvette Z06 is priced at $80,000.

9: Lionel Messi drives a $128,000 Maserati GranTurismo.