He won three races in the Nationwide Series , driving both the # 18 and # 20 cars for Joe Gibbs Racing , as well as the # 32 Dollar General\/Haas Avocados car for Braun Racing . He won three races in the Nationwide Series , driving both the # 18 and # 20 entries for Gibbs , as well as the # 32 Dollar General\/Haas Avocados car for Braun Racing .