Start Your Engines Ricky Dennis was born into the sport of auto racing, and now he's making money doing what he loves.

What: Indoor arena racing licensing
Who: Ricky Dennis of Arena Racing LLC
Where: Mechanicsville, Virginia
When: Started in 2002
Startup Costs: $500,000

Ricky Dennis was born into the sport of auto racing, and now he's making money doing what he loves. The son of a racer, Dennis went to his first hockey game in the early '90s, and he says all he could picture was "a race car running around a racetrack in the arena with all those people sitting there looking at it. Like a million other race fans, I was wishing we had something to watch in the winter, because there's almost no racing [then]."