Paul Tracy, a former world champion on the Champ Car World Series, is no stranger to Las Vegas Motor Speedway. But turning laps in a stock car is a little different than what he is used to. Tracy, who has competed in a pair of Champ Car World Series events at LVMS, spent Tuesday testing a Busch car in preparation for the March 11 Sam's Town 300 NASCAR Busch Series race on the 1.5-mile superspeedway. Tracy is scheduled to compete in five Busch races beginning at Daytona. He said the adjustment from the open-wheel cars to stock cars has been challenging. "The whole car feels totally different than what I've ever driven and it's really a re-learning process," said Tracy, who is driving for car owners Frank Cicci and NFL Hall of Fame quarterback Jim Kelly. "In a Champ Car I know exactly where the car needs to be at, which line I need to drive, and just basically how the car needs to feel. With these I'm just learning as I go along." Tracy says that right now the biggest thing that will help him prepare for the Sam's Town 300 in March will be track time. "Guys in the Busch Series have been running this style of cars since they started racing," Tracy said. "I come from something that's totally different. So the more time I get the better I can understand what the car can do." The Champ Car veteran knows the competition will be stiff once he begins his NASCAR career. "There are so many (Nextel) Cup level guys and teams that have top equipment," Tracy said. "To finish the race in the top-15, I think would be really good." Stephen Leicht, a rookie driving for Robert Yates Racing, was involved in the only incident of the day. He spun coming off of turn three and made contact with the outside wall. Leicht was able to drive his car back to the garage area. No testing speed were available. Tracy joined 45 other Busch Series drivers as part of the Busch edition of NASCAR Preseason Thunder Las Vegas. The session concludes Wednesday. The public is invited to watch the test sessions free of charge from 9 a.m. to 5 p.m. Tickets for the March 10-12 NASCAR Weekend are available by calling 1-800-644-4444 or logging on to