The Infiniti Pro Series was re-founded by the Indy Racing League and began racing in 2002, the year after the CART-sanctioned Indy Lights series' demise. It was a spec series using a
TWR (Tom Walkinshaw Racing) developed 3.5L version of the V8 engine used in the
Infiniti Q45 combined with
Dallara chassis producing . The series initially struggled to attract drivers and some races have had fewer than 10 entrants. However, with the introduction of a number of road-course races to the schedule in
2005, many of America's top prospects like
Marco Andretti and
Phil Giebler were attracted to the series to run part-time schedules on road courses. In
2006, a boost in prize money even further increased car counts to 16 or more, with an even six oval and six road course mix. The selected races being double races, and a stand-alone race (independent of the IndyCar Series) were scheduled on the USGP weekend. The series was called the
Menards Infiniti Pro Series (MIPS) until 2006 when both
Menards and
Nissan dropped their sponsorship of the series. It was then known as the
Indy Pro Series. On March 26, 2008, the series announced a changing of names, when the historical records and proprietary information of
Champ Car were acquired by the IRL. The series then became known as
Firestone Indy Lights. The centerpiece of the Indy Lights schedule was the
Freedom 100, contested at
Indianapolis Motor Speedway on the Friday prior to the
Indianapolis 500. The series also held a support race for the
U.S. Grand Prix, the
Liberty Challenge, from 2005 to 2007. It was the series' first event that was not a support race to an IndyCar event. On September 9, 2007, during the
Chicagoland 100,
Logan Gomez beat
Alex Lloyd by 0.0005 seconds (approximately at 188 mph) which reflects what was the closest recognized finish in the over century-long history of organized automobile racing throughout the world, until the
2018 PowerShares QQQ 300. In 2008, the margin was established by the
Guinness Book of World Records as the closest finish ever in a car race. On May 24, 2013, Peter Dempsey captured his first Indy Lights win in the
Freedom 100 in the closest finish in Indianapolis Motor Speedway history (0.0026 secs) in a four-wide finish. In June 2013, it was announced that the series would be promoted by Andersen Promotions beginning in
2014. with IndyCar sanctioning remaining. In August it was announced that
Cooper Tire would replace Firestone as the official tire of the series in 2014. This resulted in all three levels of the
Road to Indy leading up to the IndyCar Series being promoted by Andersen and feature Cooper tires, beginning in 2014. The Andersen team implemented a number of cost-reducing updates to the chassis and engine package in 2014 and introduced a new chassis and engine combination in 2015. On October 31, 2013, the series announced that Dallara would be the manufacturer of the fourth-generation Indy Lights chassis and it would be named the Dallara IL-15. On November 1, 2013, a new logo was unveiled for the Indy Lights series On November 26 it was announced that the engine for the new package would be a 2.0L
turbocharged MZR-R four cylinder engine, tuned to last a full season of competition and producing 450 horsepower, with push-to-pass offering an additional 50 horsepower. The 2020 season was canceled through a combination of low grid numbers and the
COVID-19 pandemic. As of 2021, the Dallara IL-15 continues to be the chassis employed by the series, but engines are now provided by AER, Advanced Engines Research, modifying and tuning base 2.0 liter I-4 Mazda power plants turbocharged to provide the same power and push-to-pass capability of the former engines, with the added capability of longevity: the engines are designed and fabricated to run an entire season without a rebuild. A
halo was added to the IL-15 for the 2021 season. Andretti Autosport's Kyle Kirkwood captured the 2021 series championship, while HMD Motorsports' David Malukas finished second and Global Racing Group w/HMD Motorsports' Linus Lundqvist was third. HMD Motorsports/Global Racing Group secured their first Road to Indy team championship. Firestone returned as the official tire supplier for the 2023 season. That season saw the series name changed to Indy NXT, and IndyCar assume direct operation of the series from Andersen Promotions, which continues to operate the affiliated lower-tier
USF Championships under IndyCar sanctioning. ==Specifications==