The 印第安纳波利斯500, commonly known as the Indy 500, is an annual automobile race held at the Indianapolis Motor Speedway in Indiana, USA. It is one of the oldest and most prestigious car races in the world, first taking place in 1911. The race covers a distance of 500 miles, and it typically features 33 cars competing for the title. The event is part of the IndyCar Series and attracts a large audience, both in-person and through broadcasts. The race is known for its high speeds, with cars reaching over 230 miles per hour. Winning the Indy 500 is considered a significant achievement in the world of motorsports.