what kind of car races in the indy 500
Indianapolis 500 Traditionally, the field consists of 33 starters, aligned in a starting grid of eleven rows of three cars apiece. The event is contested by "Indy cars", a formula of professional-level, single-seat, open cockpit, open-wheel, purpose-built race cars. As of 2018, all entrants utilize 2.2 L V6, twin-turbocharged engines, tuned to produce a range of 550–700 horsepower (410–520 kW). Chevrolet and Honda are the current engine manufacturers involved in the sport. Dallara is at present the sole chassis supplier to the series. Firestone, which has a deep history in the sport, dating back to the first 500, is currently the exclusive tire provider.