Chris Buescher Says It’s Not Just Tire Falloff—Another Factor Could Define This Year’s Goodyear 400

Darlington Raceway is ready for a new kind of race start, moving away from the intermediate setup to a short-track and road-course package. The change ahead of this year’s Goodyear 400 brings a simplified diffuser aimed at trimming underbody aero, cutting downforce, and leaving drivers to hang on with less grip, something Chris Buescher shed more light on recently.