(DAYTONA BEACH, Fla.) — Ryan Newman flipped across the finish line, his Ford planted upside down and engulfed in flames, a grim reminder of a sport steeped in danger that has stretched nearly two decades without a fatality. At the finish line, Denny Hamlin made history with a second straight Daytona 500 victory in an an overtime photo finish over Ryan Blaney, a celebration that quickly became muted as word of Newman’s wreck spread. “I think we take for granted sometimes how safe the cars are,” Hamlin said.