Indianapolis Motor Speedway introduced his loss of life in a information launch Monday.
Unser is one among 10 drivers to win the celebrated Indy 500 at least thrice and was the primary driver to win the race in three completely different a long time, a feat later matched by Rick Mears.
Bobby was a member of the legendary Unser household of racecar drivers. His older brother, Jerry Unser, died at Indianapolis Motor Speedway in a crash throughout observe forward of the 1959 Indy 500. His youthful brother, Al Unser, is a four-time winner of the Indy 500, and his nephew Al Unser, Jr, gained the race twice. In complete, six members of the Unser household have raced within the Indianapolis 500.
Unser was inducted into a number of motorsports Halls of Fame together with the Indianapolis Motor Speedway Hall of Fame, the International Motorsports Hall of Fame, and the Motorsports Hall of Fame of America.
Bobby Unser is survived by his spouse Lisa, sons Bobby Jr. and Robby, and daughters Cindy and Jeri.