Formula 4

To become eligible for FIA Formula 4, the chassis must meet the FIA homologation requirements respecting technical and commercial regulations. Four chassis manufacturers have been approved by the FIA: Tatuus, Mygale, Dome and Ligier. First generation chassis File:Abarth Tatuus F4 T014 - Mondial de l'Automobile de Paris 2014 - 002.jpg|Tatuus F4-T014 (2014–2021) File:Dome F110 front-left 2014 Super GT Suzuka.jpg|Dome F110 (2015–2023) File:Jordan Lloyd 2015 Sydney 500.JPG|Mygale M14-F4 (2015–2023) File:2017 Formula 4 United States Championship, Virginia International Raceway (36759831536).jpg| (2016–2023) Second generation chassis File:Zénó Kovács at the 2022 Grand Prix of Slovakia.jpg|Tatuus F4-T421 (2021–present) File:Mygale M21-F4 1.jpg|Mygale M21-F4 (2022–present) ==Homologated engines==

To become an eligible FIA Formula 4 engine, the engine must meet the homologation requirements. According to the homologation requirements a FIA Formula 4 engine must last at least 10,000 km and have a maximum purchase price of €14000. According to the FIA Formula 4 technical regulations only four cylinder engines are allowed. Both normally aspirated and turbocharged engines are permitted, with an absolute maximum power output of 140 kW. The engine displacement is unlimited. Currently seven engines are homologated for use in the FIA Formula 4. ==Performance==

Formula 4 is the first step out of karting on the FIA Global Pathway, and by design has the least performance of any of the cars in it. Compared to road-legal supercars, Formula 4 cars are less accelerative and have a much lower top speed of approximately 240 km/h; most modern supercars are capable of in excess of 300 km/h. The F4 cars have far superior braking and cornering capabilities, particularly in high-speed corners where the aerodynamic downforce of the Formula 4 cars has the most effect. According to official information from the F1 Academy, the Tatuus race car (virtually identical to the one used in some F4 series) has a peak lateral cornering acceleration of about 2.0g, far in excess of a typical (non-sporting) road car which peaks at less than 1g, but considerably less than Formula 3 cars (which peak around 2.5g). To give some idea of the gap between F4 and F1 performance levels, the fastest qualifying lap for a 2023 F4 round at the Silverstone GP circuit was 2:01.651; the pole lap in the 2024 British Grand Prix in an F1 car was 1:25.819. However, F4 cars still lap considerably faster than most production-derived racing categories. The F4 pole time is about 2 seconds faster than the Porsche Carrera Cup lap record and about 10 seconds faster than the TCR Touring Car lap record. ==Active FIA-sanctioned championships==

FIA Motorsport Games A Formula 4 race forms part of the FIA Motorsport Games, a biennial event featuring a variety of motorsport disciplines including karting, drifting, rallying, and e-sports as well as circuit racing. FIA-sanctioned national/regional championships As of 2025, the FIA recognises thirteen F4 championships. These championships are held to Formula 4 regulations and approved by the FIA as the national Formula 4 series. Drivers participating in these series can receive FIA Super Licence points, which are required to drive in Formula One. For a series to be eligible for Super Licence points, a season must be held over at least five events at a minimum of three circuits, according to FIA Appendix L. While titled national series, some series are contested at tracks in multiple countries. == Active non-FIA-sanctioned championships ==

There are a number of active championships that follow the current and former F4 specifications, but are not considered official F4 championships by the FIA. ==Former Formula 4 championships==

Canada CASC Formula 4 CASC Formula 4 was based on a non-FIA formulae, instead using 750cc motorcycle engines. Chassis were typically locally produced such as Xpit and Gamma and the cars were fuelled by methanol. It was created in 1974 and was popular in the CASC Ontario region at club level only. It no longer holds its own championship, instead running as part of the 'Formula Libre' category in the RaceOntario Championships. Formula Beat Formula Beat was created in 1993 as JAF Japan Formula 4, and was renamed in 2023. It continues to run but does not follow F4 specifications, with competitors allowed to use Formula 3 chassis as well. BRDC Formula 4 Championship The BRDC Formula 4 Championship was an entry-level motorsport series based in the United Kingdom which began in 2013. Run by the British Racing Drivers' Club and MotorSport Vision, the series used identical cars built by Ralph Firman Racing and engines from Ford, before switching to FIA Formula 4 regulations in 2015, using the Tatuus F4–T014 chassis. Although run to the FIA's regulations, it was not recognised by the FIA as an official Formula 4 championship. In 2016, the series was upgraded and renamed the BRDC British Formula 3 Championship, now known as GB3, which runs to Formula Regional specifications. Fórmula Academy Sudamericana The Fórmula Academy Sudamericana, previously known as Fórmula 4 Sudamericana, was a Formula 4 racing class that debuted in 2014. The class used the same Signatech chassis and Fiat engines used previously in the Brazilian-based Formula Future Fiat. The series folded after the 2019 season. F4 Argentina Championship A single season of the F4 Argentina Championship was held in 2021. ADAC Formula 4 Championship The ADAC Formula 4 Championship was held from 2015 to 2022. On 3 December 2022, ADAC announced that ADAC Formula 4 would not be organized for the 2023 season, with the focus on placing the German junior drivers in the French F4 Championship instead. The main reason for the decision was the low number of participating drivers due to the high costs compared to other Formula 4 championships. Formula Academy Finland Formula Academy Finland is a racing series based in Finland. Its first season was 2018. Formula Academy Finland uses same Tatuus-Abarth FIA Formula 4 car as ADAC Formula 4, Italian Formula 4 Championship and several other series. The series, however, is not approved by the FIA. There are plans to apply for Finnish Championship status for 2019 season. The series is organized by Koiranen GP. More recently as of 2020, the series has run alongside older F3 chassis as a part of the Finnish Championship Series' category Formula Open Finland. Fórmula 4 Chile The series organized by the Campeonato Nacional de Carreras Federado uses the Tatuus FA010 chassis from the Formula Abarth, one of the predecessors of the Formula 4 car. The series was never created. ==References==