Kyle Busch's thrilling move in the final few hundred feet of the Truck Series season opener led to his 99th win outside NASCAR's top series. NASCAR heard them loud and clear. NASCAR said Saturday it is looking at potentially limiting the number of second- and third-tier event Sprint Cup regulars can run during the season. ''We're definitely aware of the fan messaging we get,'' said Steve O'Donnell, NASCAR's senior vice president of racing operations. More...