 LAS VEGAS AP - The racing bug hit the Busch family long before the NASCAR champion brothers were born. Their father attended the first Daytona 500 in 1959 with his parents, and later, while working as a mechanic at a Las Vegas car dealership, he decided to try racing at the local short track. Tom Busch built and won in his own cars. When his boys were born, he built cars for them, too. It was just a hobby when it began but it turned out the Busch brothers were a pair of thoroughbreds. Busch developed his sons into a pair of aggressive and motivated young drivers who dominated the Bullring at Las Vegas Motor Speedway, then raced their way to North Carolina hoping to make it in NASCAR. Kurt kicked the door open and Kyle, seven years his junior, followed. Today they have a combined 88 Cup Series wins, three shared Cup titles and are considered among the most talented and knowledgeable drivers of their generation. Now they are celebrating a weekend that brought the Busch family full circle. Kurt Busch finally won at the home track about 24 hours after a third generation Busch went to victory lane: Brexton Busch, Kyles 5-year-old son, earned the first win of his career, in a winged box stock at Millbridge Speedway in North Carolina. Brextons budding career is being steered, of course, by Tom Busch. My dad is the truck driver, the team manager, the crew chief, the lead mechanic and all that stuff, on his cart. So hes got a big task, Kyle Busch said. Brextons win sparked emotions for all the Busch drivers, particularly Kurt, who was reflective after his nephews win. Kurt wasnt there when Brexton won Saturday night but got all the details as the family flew to Las Vegas together Sunday morning. I just sat there on the plane going My dad helped me, we... 