There weren’t many significant moments during Sunday’s Coca-Cola 600 at Charlotte Motor Speedway, but William Byron’s pass through the grass, well, turf on the front straightaway certainly was one of them. As Ty Gibbs and Tyler Reddick battled side-by-side, Byron ducked down to the bottom, clipping the turf and executing the pass on both of them. A highlight so neat, NASCAR had to ask Byron if he was serious. The answer to that question is yes, Byron was indeed very serious when he made the pass of the night. Byron had a car that was victory lane worthy, but unfortunately, that’ll be a what-if…