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 ofrally car determined by theFIA 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 theRally 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 ofGroup 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 circuittouring car racing under the name of TC Lite 4 (TCL4) from 2025.^[3][4]

Group Rally4 cars are defined in FIA document Appendix J - Article 260 asTouring 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 inGroup 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]

Rally4 cars are placed in FIA 'RC4' sporting class alongside R3 andGroup A cars.^[5]

Eligibility in FIA WRC Championships 2023

Class	Group	WRC	M	T	WRC2	WRC3	Masters	Junior
RC4	Rally4

Eligibility in FIA Regional Championships 2023

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
Lancia	Ypsilon Rally4 HF[7]	2025	FIA - A5789 Lancia Ypsilon 1204cc Turbo
Opel	Corsa Rally4[8]	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[9]	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[10]	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[11]	2021	FIA - none Built by CRM MotorsportApproved for use in national championships[12]
Source: FIA Homologation List 2021[13]

• Rally Pyramid
• Groups Rally
• Group Rally1
• Group Rally2
• Group Rally3
• Group Rally5

Wikimedia Commons has media related toRally4.

• Official website

• Rally Pyramid
• Rally groups

• CS1 French-language sources (fr)
• Articles with short description
• Short description matches Wikidata
• Commons category link from Wikidata
• Official website not in Wikidata