Now in its 15th year, the Petit Le Mans makes its way back to Road Atlanta this weekend, bringing with it international race teams, thousands of spectators and millions in revenue for regional economies. In 2005, a study of the weekend’s economic impact concluded that the race had a $53 million impact on Hall County alone, Road Atlanta President Geoff Lee said.“If you look at the overall regional economic impact associated with this event, it’s mind-blowing,” Lee said. Last year, the track played host to more than 130,000 visitors over the weekend.