 Complete the following phrase:  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 whos led the most laps 431 without winning the race. He competed in 16 Indy 500s, with a top finish of second in 