Indy Gold Achievement
Earn a gold medal in a modern Indy Car on Indianapolis Brickyard Speedway
This achievement is easily earned in Free Play using a rented Indy Car. From the main menu choose Free Play and in the menu choose "Select Track". Navigate to Indianapolis Motor Speedway and choose the Brickyard Speedway configuration. Then go to "Select Car" and choose to rent a car. Rent the 2013 Chevrolet #1 Andretti Autosport Dallara DW 12. Select "Game Options" and set Game Type to Circuit Race, Drivatars to 1, Drivatar Difficulty to New Racer, and Laps to 1.
Start the race and you will easily come in first, unlocking this achievement.