Andretti's success continued throughout the rest of the 1960s. In particular, he repeated the USAC National Championship in 1966 and he won the prestigious Daytona 500 in 1967, as well as the 12 Hours of Sebring endurance race. In 1967 Andretti won eight races but he came in second place in the USAC championship behind A.J. Foyt, another legend in racing who often challenged Andretti on the track. "He and I always respected one another because neither one wanted to settle for second," Foyt told Dave Caldwell of Knight Ridder/Tribune News Service in 1994. In 1968 Andretti again came in second place in the USAC championship to another racing rival, Bobby Unser. Andretti solidified his power as a racing champion by clinching the 1969 Indianapolis 500. He also won the Pike's Peak Hill Climb in Colorado, a race that had been dominated by Bobby Unser and his family. Andretti topped off 1969 with his third USAC National Championship.
The Indianapolis 500 is the most popular auto race among the general public and one of the most coveted championships among drivers. The track is called "The Brickyard" because it was paved with bricks when it was first built. In 1969 Andretti made his fifth appearance at the Indianapolis 500. During a practice session before the qualifying race, Andretti's car spun out of control and hit the concrete retaining wall. The car flew apart and began to burn. Andretti was lucky to walk away from the crash, although he suffered second-degree burns on his face.
During the qualifying run, Andretti placed second. A.J. Foyt, who had already won three Indianapolis 500 titles, won the pole position. Andretti knew that his car had mechanical problems and tended to overheat, so he did not expect to win the race. He decided to just run the car as hard as he could until it gave out. Although the car did start to overheat, Andretti learned that he could control the problem if he kept his speed at about 165 miles per hour. Several times he had wanted to go faster because of the tense competition around him, but he restrained himself to preserve his car. His strategy paid off. As other drivers fell out of the race due to mechanical problems, Andretti took the lead. In the end, he won his first and only Indianapolis 500 championship in three hours, 11 minutes, and 41 seconds.
Mario Andretti,versatile driver
In the 1970s Andretti focused on Formula One racing on the international Grand Prix circuit. This consisted of 16 races held on four continents. Andretti's first Formula One race came in 1971 at the South African Grand Prix. He won several other Formula One races over the next few years. In 1978 he won the Formula One World Championship and a year later he won the International Race of Champions title. Andretti's ability to be a successful racer in different cars and on different tracks is what has made him a truly exceptional driver. "Mario has a combination of various important factors that few of his fellow drivers in USAC share; a burning desire to prove his talents in all fields of racing," wrote Lyle Kenyon Engel in his 1970 book Mario Andretti: The Man Who Can Win Any Kind of Race. "He's not satisfied in topping the list in his major racing area of interest, championship cars, but also he wants to excel in sports cars, stockers and Formula cars."
Andretti continued to race both Formula One and Indy cars throughout the 1980s and half of the 1990s. "I have won on 127 different kinds of tracks, clockwise and counterclockwise. I have experienced the passing of the engine from the front to the back. I have raced with the greats who have since retired, and in places that are now parking lots," G.S. Prentzas quoted Andretti from a 1978 interview in the book Mario Andretti. In 1984 he won the Championship Car National Championship for the fourth time. He was also named Driver of the Year for the third time, becoming the first driver to receive the award in three different decades. Unfortunately, Andretti was never able to repeat his win at the Indianapolis 500. He came close in 1981 when he placed second to Bobby Unser. After the race was over, Unser was penalized one lap for passing illegally and Andretti was declared the winner. However, Unser protested the penalty, the decision was overturned, and Unser was reinstated as the champion.
Although Andretti continued to drive when many of his contemporaries retired, his victories became sparser as he got older. Andretti won his last Indy car race in Phoenix in 1993. It was the 52nd of his career. That same year, he set the highest qualifying speed at the Michigan International Speedway at 234.275 miles per hour, proving that age had not slowed him down. Andretti decided to retire at the end of the 1994 season. "There's no question that I've driven past my prime, but realistically, I'm still capable of bringing home results," Andretti told Bruce Newman of Sports Illustrated in 1994. Even after his retirement, Andretti continued to race in the 24 Hours of LeMans, the one international motor racing title that had eluded him.
Although Andretti no longer drives racecars, he is still involved in the sport of racing. In 2002 he joined the board of directors for Championship Auto Racing Teams (CART). He has also been a spokesperson for improving safety standards in racing. Outside of racing, Andretti has a number of business ventures. He is vice chairman of the board of Andretti Wines in Napa Valley, California. He owns several Texaco and Shell gas stations in the Bay Area that feature his "Winning Finish" and "Quick Pit" logos. He also owns Andretti Toyota and Andretti Mitsubishi in Coraopolis, Pennsylvania and a chain of Andretti Hanna Carwashes in Lehigh Valley, Pennsylvania. Additionally he owns Andretti Signature Line, which sells Andretti apparel, books, and collectibles. In 1998 Andretti participated in the creation of an IMAX film called Super Speedway.