4. FERNANDO ALONSO $38.5 million
Photograph By Andrew Brownbill/AP Images
Two-time Formula One champion Fernando Alonso began his career racing go-karts at age 3. Now the Spaniard is F1's highest-paid driver. Fame has accompanied his fortune: In addition to Alonsomania, which UrbanDictionary.com defines as "an insane passion about everything to do with ... Fernando Alonso," Alonso fans have created a Tumblr page dedicated to him.