Sunday 17th August 1980
Cale Yarborough took command 12 laps from the end and roars to victory in the Champion Spark Plug 400 at Michigan International Speedway. Yarborough (US), a 2012 inductee to the NASCAR Hall of Fame, started second and finished 2.3 seconds ahead of runner-up Neil Bonnett. Donnie Allison held on for third place.