racing behind his father, Mario Andretti (52 wins) and A. J. Foyt (67 wins). Andretti is also tied with Al Unser Jr. for the most wins in a CART/IndyCar season with eight victories. He achieved this during his championship-winning season of 1991. Throughout his time in IndyCar, he retained a consistent and impressive record, finishing in the top ten of the championship on 17 occasions. Semi-retirement and team owner Andretti entered in the first four IRL events in 2003, culminating with the 2003 Indianapolis 500, after which he retired from full-time IndyCar racing. He led the race for 28 of the opening 94 laps before a throttle linkage failure put him out of contention once again. That year he bought into the "Team Green" squad run by brothers Kim and Barry Green in CART. It became Andretti Green Racing and for 2003, the team moved to the Indy Racing League IndyCar Series. The team claimed consecutive IndyCar Series titles in 2004 and 2005, with Tony Kanaan and Dan Wheldon respectively, winning 11 of the 17 races, including the Indianapolis 500. The 2007 enhanced the Andretti legacy, when Dario Franchitti captured Andretti Green Racing its third Series title in four seasons, and its second Indianapolis 500 win. Andretti returned to the driver's seat for the 2006 Indianapolis 500 in a one-time effort to assist the development of his son, Marco, an IndyCar rookie for the 2006 season. Michael led the race with four laps to go, before falling to second behind his son a lap later. He went on to finish third, while Marco only just missed out on the 500 victory after he was passed just before the start/finish line on the last lap by three-time IndyCar champion, Sam Hornish Jr. After qualifying his car in 11th place for the 2007 Indianapolis 500, Andretti went on to finish 13th. He then announced that this would be his last Indy 500 as a driver. Andretti leaves driving competition at Indy with a frustrating distinction: the driver who led the most laps (431) without winning the race. He competed in 16 Indy 500s, with a top finish of second in 1991, but led the race nine times. By 2012, racing under the name of Andretti Autosport, they brought the 2012 IndyCar Series championship back home. Michael served not only as the team owners, but as the strategist on Ryan Hunter-Reay's four race