Formed in 1994, IndyCar is North America's premier open-wheel motor racing series and consists of one of the biggest races on the motorsport calendar, the Indianapolis 500.
Renowned for boasting a diverse range of circuits, IndyCar blends the traditional oval speedways with road courses and even temporary street racetracks to provide the ultimate challenge for teams and drivers.
The 2025 IndyCar Series commences on 2nd March with the Grand Prix of St. Petersburg and concludes on the final weekend of August in Tennessee.
A total of 33 drivers and 12 teams will compete over the course of the 2025 IndyCar season, including a number of part-time participants who will run in the Indianapolis 500 and other select races.
Teams are permitted to run as many or as few cars as they please, with some possessing a two-driver line-up whilst others have as many as three.
A. J. Foyt Racing
Andretti Global with Curb-Agajanian
Andretti Global
Arrow McLaren
Arrow McLaren/Rick Hendrick
Chip Ganassi Racing
Dale Coyne Racing
DRR-Cusick Motorsports
ECR
Juncos Hollinger Racing
Meyer Shank Racing
Prema Racing
Rahal Letterman Lanigan Racing
Team Penske
There are a total of 16 different circuits on the 2025 IndyCar schedule, of which five are ovals/speedways, seven are road courses and four are street tracks.
The Indianapolis 500 is the staple of the IndyCar calendar and forms the first part of the prestigious Triple Crown alongside the 24 Hours of Le Mans and the F1 World Drivers' Championship.
Other famous venues include Road America, Laguna Seca Raceway and Long Beach.
Oval/Speedways
Race Courses
Street Tracks
Firestone has been the sole tire supplier for the series since 2000, having previously shared supply duties with Goodyear from 1996 to 1999.
IndyCar uses separate compounds for dry and wet conditions, although they do not utilise an intermediate compound like in Formula 1.
Engines for the series are currently supplied by Chevrolet and Honda.
Operating with a 2.2 litre twin-turbo V6, IndyCar transitioned into the hybrid era in 2024 with the implementation of energy recovery systems.
Like all other motorsport classifications, the driver who has accumulated the most points at the end of the season is crowned IndyCar champion.
There are points available for all 33 participants, with the winner of a race being awarded 50 points, second place receives 40 whilst the driver completing in the podium in third gets 35 points.
Drivers that finish 25th or below all receive five points.
There are additional points on offer for pole position (1), leading at least one lap (1) and most laps led (2).
A race weekend can alter from race to race, however the most common theme consists of two practice sessions on a Friday, another practice session prior to qualifying on Saturday before the race is held on a Sunday.
Races are a rolling start where the field follows a pace car until it exits into the pits.
Teams are only permitted up to seven mechanics to help in a pit stop. Refuelling is a key part of IndyCar strategy and in races like the Indy 500 - the longest race of the year - drivers may need to pit at least five times.
The sport of open-wheel racing in America dates back to 1905 and the first Indianapolis 500 was held in 1911.
In 1994, plans for IndyCar were proposed and two years later the new national championship racing series was launched by Tony George. Initially labelled the Indy Car League, the new series was to provide direct competition to the Championship Auto Racing Teams (CART).
In 2008, the IndyCar Series merged with CART's successor, the Champ Car World Series, although the feud between the two sanctioning bodies had come at a detriment to the popularity of open-wheel racing in the US.
Viewership of IndyCar has steadily increased since and there's been a growing number of world-class drivers wishing to compete in the series, while the Indy 500 remains one of motor racing's crown jewels.
Scott Dixon is the most decorated IndyCar driver, having claimed six titles between 2003 and 2020.