Rusty Jarrett/Getty Images for NASCAR

O. Bruton Smith

Age: 82
Residence: Charlotte, N.C.
What keeps him busy: Chairman and CEO of Sonic Automotive and of Speedway Motorsports; Owner of Sonic Financial; CEO of New Hampshire Motor Speedway, Bristol Motor Speedway, Atlanta Motor Speedway, Kentucky Speedway, and Infineon Raceway

The first man to bring Nascar to Wall Street, the auto-racing billionaire owns Speedway Motorsports (TRK), which includes the Charlotte Motor Speedway, Las Vegas Motor Speedway, and Texas Motor Speedway. He is also chairman and CEO of Sonic Automotive, a company with more than 180 car dealerships.

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