The Busch brothers grew up racing on the 3/8-mile bullring that now sits in the shadow of the Las Vegas Motor Speedway, many miles north of the glittering lights of the Strip. In a town where precious few residents have deep roots, Kurt and his kid brother, Kyle, grew up in the game on the Vegas track and eventually blossomed into NASCAR stars. ''Every time I come out here, it reminds me of all the people that helped Kyle and I, especially our dad, Tom,'' Kurt Busch said. More...