Kurtis "Kurt" Thomas Busch (born August 4, 1978) is an American professional stock car racing driver. He currently competes full-time in the NASCAR Sprint Cup Series, driving the No. 41 Chevrolet SS for Stewart-Haas Racing. He is a second-generation racing driver; his father, Tom, won several NASCAR-sanctioned events. He is the older brother of 2015 NASCAR Sprint Cup Series Champion Kyle Busch.
On March 23, 2014 at Auto Club Speedway, Busch started 14th and was running fifth on the final restart. His older brother Kurt Busch appeared to have the win locked up, but Kurt and Tony Stewart got into an aggressive battle for the lead that resulted in Busch catching up to the leaders and passing for the win on the final lap. Busch held off rookie Kyle Larson for the win after passing Kurt Busch and Stewart.
Busch won the Cup Series Championship in 2004, the first ever season using the "Chase for the Cup" points format, finishing just eight points ahead of Jimmie Johnson. With a 2006 win in the Nationwide Series, Busch became one of only twenty-three drivers to win races in all three of NASCAR's top divisions: the Sprint Cup Series, the Nationwide Series, and the Camping World Truck Series.
His Sprint Cup career has included a history of arguments, fights with other drivers, profanity-laced tirades, and legal problems that have resulted in suspensions on three different occasions, the most recent on February 20, 2015.