Iowa: #6: Brad Keselowski, RFK Racing, King's Hawaiian - Casey's Ford Mustang, #22: Joey Logano, Team Penske, Shell Pennzoil Ford Mustang, and #8: Kyle Busch, Richard Childress Racing, zone / Kwik Star Chevrolet Camaro
#6: Brad Keselowski, RFK Racing, King's Hawaiian - Casey's Ford Mustang, #22: Joey Logano, Team Penske, Shell Pennzoil Ford Mustang, and #8: Kyle Busch, Richard Childress Racing, zone / Kwik Star Chevrolet Camaro