2023 NTT IndyCar Series (NaBB737)

The 2023 NTT IndyCar Series is set to be the 112th official championship season of American open wheel racing and the 28th season under IndyCar Series sanction. The premier event will be the 2023 Indianapolis 500. It will be the fourth year under Penske management after they took over in late 2019.

Contracted teams and drivers
The following teams, entries and drivers have been announced to compete in the 2023 NTT IndyCar Series season. Teams that are entering only the Month of May races or just the Indianapolis 500 are not shown here. All teams use a spec Dallara IR18 chassis with universal aero kits (one each for speedways, short ovals, and road courses) and Firestone tires. This is the first season of the new 2.4-liter twin-turbo V6 hybrid engine formula, and the new Dallara i24-DJ chassis will debut the following season. The i24-DJ acknowledges in its name Dan Wheldon and Justin Wilson, the two most recent IndyCar drivers who lost their lives as results of separate crashes (in 2011 and 2015 respectively).

Driver/Team Changes

 * Drivers entering the series full-time or increasing schedule to full-time: Linus Lundqvist, Kyle Kirkwood, David Malukas (all from Indy Lights), Giuliano Alesi (from Super Formula), Alexander Albon (raced non-superspeedways), Pietro Fittipaldi (raced superspeedways)
 * Drivers entering the series part-time: Benjamin Pedersen (from Indy Lights)
 * After the 2022 season, AJ Foyt Enterprises announced it would not be re-signing Sebastien Bourdais, and the Frenchman would look for a part-time IndyCar seat while racing an increased schedule in the IMSA SportsCar championship. It was later announced that 2022 Indy Lights champion Linus Lundqvist would sign to drive the #14 Chevrolet full-time. Also, Dalton Kellett's number was changed from #4 to #41, which he raced with in his rookie season.
 * Following Alexander Rossi's departure, Andretti Autosport announced that it would reduce its full-time entry count to 3, citing the need to build up its new IMSA LMDh program. The team plans on running 4 cars at several races, and 5 at the Indianapolis 500. Also, the #29 of Devlin DeFrancesco was changed to #27 following this announcement.
 * Arrow McLaren SP dropped the "Schmidt Peterson" part of its name to become Arrow McLaren Racing, and renamed its legal entity McLaren Schmidt Peterson, LLC. Additionally, the team increased Kyle Kirkwood's duties to the full schedule after only being able to run 2/3 of it in 2022 because sufficient sponsorship had not yet been acquired.
 * Near the end of the 2022 season, Vasser-Sullivan Racing (which had been a partner on one of Dale Coyne Racing's entries) announced it would partner with Carlin Motorsport from 2023 onwards. The team is known as VSC Motorsport (Vasser-Sullivan-Carlin) and the partnership allowed for an expansion of the team. Max Chilton remains in the 59 but for a partial schedule, and promising Japanese Super Formula pilot Giuliano Alesi signs for a full schedule in the Sealmaster #31.
 * Following news that Jimmie Johnson would enter only 4 races (incl. Month of May; other races unknown), Chip Ganassi Racing announced that Alexander Rossi would join the team in the #4 Honda, replacing the full-time status of the #48 Honda that had been driven by Johnson and Tony Kanaan (who retired from IndyCar). Rossi's NAPA Auto Parts sponsorship would follow him. Carvana shifts to being Johnson's primary backer in his races, as well as a primary backer on one of CGR's IMSA entries and an alternate/associate sponsor on the #10 of Alex Palou.
 * After the departure of Vasser-Sullivan from Dale Coyne Racing, Coyne and Rick Ware Racing announced that RWR would expand its partnership to cover the #18 and would also add a 3rd full-time entry, the #52. This was made possible in large part by RWR's NASCAR operations downsizing from 3 Cup entries and 2 Xfinity entries to 2 Cup entries and a part-time Xfinity entry. Pietro Fittipaldi left Haas F1 to commit to the team full-time, after racing here and there for several seasons. Alexander Albon increases his schedule to a full-time slate after racing only road courses and short ovals in 2022. The 3rd car is split between Rick Ware's son Cody (who does the Month of May, including the Indy 500-Coke 600 NASCAR double), Conor Daly (who is reduced to a part-time slate), and Indy Lights standout Benjamin Pedersen who enters 7 races.
 * Ed Carpenter Racing brings on David Malukas for a full-time schedule, after he entered 2 races for the team in the latter half of the 2022 season. The 2023 season sees ECR have two full-time drivers alongside Ed Carpenter, who is in the "third" car for all of the ovals, rather than splitting a full-time car with a road/street course only driver. Malukas drives the #11 Chevy with US Air Force continuing as a sponsor for Ed's oval races and David's road/street races.

Schedule
Notable schedule changes


 * Texas Motor Speedway is replaced by Homestead-Miami Speedway due to complications with the promoters and NASCAR's use of the PJ1 traction compound. Homestead-Miami returns to the schedule for the first time since 2010. It moves to the second race of the season to ease logistics after the season opener in St. Pete. The event is sponsored by Miami Breeze Car Care.
 * The race at the Mid-Ohio Sports Car Course moves to a late April date.
 * The Chevrolet Detroit Grand Prix is no longer a doubleheader for the first time since 2013. Instead, a "sprint race" will take place on Saturday, setting the grid for drivers who were outside the Firestone Fast Six in qualifying.
 * IndyCar has a race in Mexico for the first time since 2006, as the Autodromo Hermanos Rodriguez is added to the schedule. The layout used is similar to the one used in Formula 1 but bypasses the "Horquilla" section.
 * The NASCAR-IndyCar doubleheader that took place in 2021 and 2022 is moved to the Road America weekend, which takes place on the closest weekend to 4th of July (a few weeks after the normal IndyCar RA event; it's the date used by NASCAR).
 * The former Toronto street race at Exhibition Place moves to Montreal at the Circuit Gilles Villeneuve, which last hosted American open-wheel in 2006.
 * The West Coast "swing" at the end of the season spreads out and adds a race, as the Grand Prix of Denver returns after last being on a schedule in...you guessed it...Champ Car's 2006 season. Parts of the old layout are kept the same, but the paddock location is changed among other things.