DAYTONA BEACH, Fla. (AP) — Kurt Busch hinted he may soon retire from NASCAR in a video released two days before the Daytona 500. Busch is the 2004 NASCAR Cup champion and won the 2017 Daytona 500. The video is full of clues that the 42-year-old Busch has at least considered retirement after this season. He has spent the last two seasons with Chip Ganassi Racing and his contract is up at the end of the year.