One of the most frightening moments of the 1991 NASCAR season came during the Pepsi 400 at Daytona International Speedway. Darrell Waltrip made contact with Alan Kulwicki down the backstretch, sending Waltrip’s car into a spectacular high-speed flip that stunned the crowd. The wreck served as a reminder of how dangerous superspeedway racing was in the early ’90s, when cars were running flat-out in tight packs. Waltrip survived the crash, but the incident remains one of the most replayed Daytona