ESPN

Welcome to The Show! On Sunday, the winner of the Delphi Indy 300 will drop by to take your questions after the race.

The biggest questions heading into the Delphi Indy 300 this Sunday at Chicagoland Speedway sound familiar: Will anyone stand up and challenge Andretti Green Racing, and can Toyota or Chevy engines do anything to move Honda out of Victory Lane?

AGR is coming off a 1-2-3 sweep -- the first of its kind in IRL history -- after Dan Wheldon led the way to victory in the Firestone Indy 225 at Nazareth on Aug. 29. It marked the 12th straight victory for a Honda-powered car.

The race in Joliet, Ill, this weekend kicks off the final three-race stretch of the season. Tony Kanaan, who has 12 straight top five finishes, can win the IndyCar Series championship by averaging a finish of fifth or better in each of the final three races.

The races at Chicagoland always are close: Last year, it was Sam Hornish Jr. edging out Scott Dixon by .0099 seconds for his second straight win in the Delphi Indy 300.

Watch the race this Sunday on ABC at 1:30 p.m. ET and check out ESPN.com after the race to chat with the winner. The winner will be here about 30 minutes after the race, or roughly 4:30 p.m., but be sure to log on and get your questions in beforehand if you want them answered.