If you watch at the beginning of his pole lap, you can see he is driving almost entirely one-handed for the first part of the lap: https://x.com/NASCARONFOX/sta

If you watch at the beginning of his pole lap, you can see he is driving almost entirely one-handed for the first part of the lap: https://x.com/NASCARONFOX/status/1757963422874906969?s=20 https://x.com/NASCARONFOX/status/1757963422874906969?s=20 Also, the margins at super speedways are really small and this opening is the least aerodynamic piece of the car so altering that opening can definitely come with benefits that could make a difference.