<page_title> List of NASCAR drivers who have won in each of top three series </page_title> <section_title> Triple Threats </section_title> <table> <cell> Kurt Busch </cell> <cell> 04-08-2006 </cell> </table>
With a 2006 win in the Busch Series, Busch became one of 31 drivers to win races in all three of NASCAR's top divisions: the Cup Series, the Xfinity Series, and the Camping World Truck Series.