With a pair of thrilling finishes in the books, the NASCAR Sprint Cup Series brings the new Gen-6 cars to the third intermediate track of the 2013 season, Saturday night under the lights at Texas Motor Speedway. Kyle Busch won at Auto Club Speedway with a final lap pass while his Joe Gibbs Racing teammate Matt Kenseth out-dueled Kasey Kahne in a tense, final-laps duel at Las Vegas Motor Speedway.