10 things you need to know about the Indy 500

2. DOUBLE DUTY -- Two drivers can become the first to win on both the Indianapolis Motor Speedway road course and the 2.5-mile oval: Simon Pagenaud and Will Power have road course wins.

1. OUT FRONT -- For the 100th running of the 500, Roger Penske will drive the Chevrolet Camaro Pace Car. That's only appropriate, as its his 50th anniversary year in racing and Team Penske has a record 16 Indy 500 victories.  Chip Ganassi Racing has won four times. Andretti Autosport has three wins while A.J. Foyt Enterprises has won twice.