Description Available in: Kyle Busch Motorsports (KBM) is an American professional stock car racing team that currently competes in the NASCAR Craftsman Truck Series. They formerly competed in the CARS Tour, ARCA/CRA Super Series, Southern Super Series, and the ARCA Menards Series, and is also the parent company of Super Late Model chassis constructor Rowdy Manufacturing. Originally fielding Toyota Tundras since its inception, the team switched to Chevrolet Silverados beginning in 2023. The team currently fields two full-time Chevrolet Silverados: the No. 4 for Chase Purdy and the No. 51, which is driven each year by the team owner Kyle Busch along with Jack Wood and multiple Chevrolet drivers from other NASCAR series to be named in the future.