Group Rally4 | |
---|---|
Motor racing formula | |
Category | Rallying |
Country/Region | International |
Championships | WRC, Regional, National |
Inaugural | 2019 (2008 as R2) |
Status | Active |
Drivetrain | Two Wheel Drive |
Power to weight | 5.1kg/hp |
Aptitude | Performance |
Group Rally4 is a technical specification of rally car determined by the FIA for use in its international competitions: World Rally Championship (WRC) and regional championships. National rallying competitions also allow Group Rally4 cars to compete. There are two technical subclasses of Group Rally4 however these do not affect competitive eligibility. 'Rally4' may be used alone with the same definition. The group was launched in 2019 after the introduction of the Rally Pyramid initiative to reorganise the classes of car and championships in international rallying was approved in June 2018. [1]
The formula for Group Rally4 cars was taken from R2 class of Group R and tweaked with the defining ruleset interchanging the terms, this meant that any existing R2 car homologated or approved since their introduction in 2008 could continue to be used in Rally4 level competition. [2] However, R2 cars homologated prior to 2019 were not required to have a turbo restrictor fitted and remain exempt. Those of R2B class cars also retain the minimum weight of 1030 kg and must use 6.5"x16" on asphalt rallies.
In July 2024, the FIA announced slightly modified Group Rally4 cars will be eligible to race in circuit touring car racing under the name of TCL4 from 2025. [3] [4]
Group Rally4 cars are defined in FIA document Appendix J - Article 260 as Touring Cars or Large Scale Series Production Cars, supercharged Petrol engine (including rotary engines), 2-wheel drive (front or rear wheel drive)). A production touring car with at least 2500 identical units manufactured must be homologated in Group A, with all the components and changes that make it a Group Rally4 car homologated in an extension. [2] They have a power to weight ratio of 5.1kg/hp. [1]
Class | (Group R legacy class) | Drivetrain | Minimum Weight | Engine Capacity | Aspiration | Fuel | Maximum Cylinders | Turbo Restrictor | Wheels Gravel | Wheels Asphalt | Production Requirement |
---|---|---|---|---|---|---|---|---|---|---|---|
Ra4B | R2B | 2WD | 1080 kg | 1390-1600cc | Normal | Petrol | 6 | 30mm | 6"x15" | 6.5"x16" or 7"x17" | 2500 |
927-1067cc | Turbo | ||||||||||
Ra4C | R2C | 1600-2000cc | Normal | 7"x17" | |||||||
1067-1333cc | Turbo |
Rally4 cars are placed in FIA 'RC4' sporting class alongside R3 and Group A cars. [5]
Class | Group | WRC | M | T | WRC2 | WRC3 | Masters | Junior |
---|---|---|---|---|---|---|---|---|
RC4 | Rally4 |
Class | Group | ALL | ERC | ERT | ARC | MERC | APRC | NACAM | CODASUR | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Absolute | Teams | ERC3 | ERC4 | Jun | Jun | ARC2 | ARC3 | ARC4 | Jun | MERC2 | MERC3 | MERC4 | Jun | APRC3 | APRC4 | Jun | NAC3 | NAC4 | Jun | COD2 | COD3 | COD4 | ||
RC4 | Rally4 |
Manufacturer | Car | Debut | Homologation Basis | Image |
---|---|---|---|---|
Ford | Fiesta Rally4 [6] | 2019 | FIA - A5775 Fiesta ST-Line (Fiesta Mk7) 999cc Turbo | |
Ford | Fiesta R2T | 2015 | FIA - A5762 Fiesta 1.0 Ecoboost 140 PS (Fiesta Mk7) 999cc Turbo | |
Ford | Fiesta R2 | 2012 | FIA - A5729 Fiesta 1.6 (Fiesta Mk6) 1597cc Normal | |
Opel | Corsa Rally4 [7] | 2021 | FIA - A5781 Opel Corsa GS Line 130 1204cc Turbo | |
Opel | Adam R2 | 2014 | FIA - A5752 Adam Slam 3-Door Hatchback 1398cc Normal | |
Peugeot | 208 Rally4 [8] | 2020 | FIA - A5780 208 GT Line 130 1204cc Turbo | |
Peugeot | 208 R2 | 2012 | FIA - A5743 208 VTI 125 3 Portes 1598cc Normal | |
Renault | Clio Rally4 [9] | 2021 | FIA - A5779 Clio R.S. Line TCE 1.3EDC 1331cc Turbo | |
Renault | Twingo R2 | 2010 | FIA - A5731 Twingo "Renault Sport" 1598cc Normal | |
Škoda | Fabia R2 | 2011 | FIA - A5737 Fabia 1.6 16v 1598cc Normal | |
Kia | Rio Rally4 [10] | 2021 | FIA - none Built by CRM Motorsport Approved for use in national championships [11] | |
Lancia | Ypsilon Rally 4 HF [12] | 2025 | ||
Source: FIA Homologation List 2021 [13] |
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The FIA Junior WRC Championship, is an international rallying series restricted to drivers under 29 years old, running within the framework of the World Rally Championship. The series is governed by the Fédération Internationale de l'Automobile (FIA) and promoted by M-Sport Ltd.
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