Danica Patrick has said that she tries not to let superstitions develop, because she thinks that they're all in your head, and they're not real until you start to believe in them [source: Gaudiosi]. However, she's also said that certain foods help her get in the right frame of mind on race morning. She's known to be particularly fond of eating healthy foods, which help her stay sharp on the track.
Sterling Marlin won his first Daytona 500 in 1994, after chowing down on a bologna sandwich. So that became one of his personal rituals before each race. And Marcos Ambrose, a NASCAR driver who is an Australian native, is fond of his native country's distinctive Vegemite spread as part of his pre-race meal. With these three drivers as examples, it just goes to show that even a shared tradition can be deeply personal, and thus totally different, for each racer on the track.