More than a few NASCAR Sprint Cup drivers are concerned that Saturday’s knock-out qualifying for Sunday’s Aaron’s 499 at Talladega Superspeedway is going to get wild. The fear is that with multiple cars on the 2.66 banked oval. TALLADEGA — NASCAR’s elite are gathered in the heart of Alabama for. Unpredictability is the common thread, especially now that group qualifying is part of the equation. Forget the monotonous one-car drone…