The tradition of drinking milk after winning the Indianapolis 500 traces back to 1933, when winner Louis Meyer asked for a glass of buttermilk after the race.

Push to Pass is IndyCar’s on-demand power boost system: a strategic tool drivers use to gain a short burst of extra power, primarily for overtaking or defending a position. 

The IRL/CART split – often called “The Split” – is one of the most consequential and self-destructive events in American motorsport history. 

The Indianapolis 500 is the oldest and most prestigious race in American motorsport, run every year on Memorial Day weekend at the Indianapolis Motor Speedway.

To the casual bystander, Formula 1 cars and Indy cars look basically the same: pointy-shaped with big wings and tires, and a driver in the middle. But once you move beyond the basic silhouette, the differences between the two quickly become apparent. 

A look through the evolution of the Indy car, era by era: