Penske's next "500" victory was one of the most controversial finishes in IndyCar history. Penske driver Unser won the pole position and led the most of the final 100 laps. On lap 140, Bobby Unser and former Penske driver Mario Andretti came out of the pits. Unser passed 11 cars under a yellow flag while Andretti passed 2 cars. Unser won the race, but was stripped of the victory the next morning in favor of Andretti. After a lengthy appeal, Unser was reinstated the victory and was instead fined $40,000 ($104,000 in today's money). Unser retired from racing after the season was over in the fall-out of the controversy.