In the motorsport discipline of rallying, Group Rally4 is a formula of rally car specifications 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.
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.
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.
Definition
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.
They have a power to weight ratio of 5.1kg/hp.
Key Specific Regulations for Cars in Group Rally4<ref name="J260 2021"/>
FIA Competition
Rally4 cars are placed in FIA 'RC4' sporting class alongside R3 and Group A cars.
In 2021, they are eligible for the open drivers' and co-drivers' championships of WRC and all the regional open championships as well as the following:
ERC3 and ERC junior
ERT2 and ERT Junior
ARC3 and ARC Junior
MERC3 and MERC Junior
APRC3 and APRC Junior
Codasur RC4
They are also the sole formula car permitted in the Junior World Rally Championship until 2021.
In new Global Rally Rankings for drivers and co-drivers being introduced in 2022, Rally4 cars have a Group Co-efficient of 0.4.
In 2022 the following titles will be contested with Group Rally4 cars: WRC
WRC
FIA World Rally Championship for Drivers
FIA World Rally Championship for Co-Drivers
Regional
ERC
FIA European Rally Championship for Drivers and Co-Drivers
FIA European Rally Championship for Teams
FIA ERC4 Championship for Drivers and Co-Drivers
FIA ERC4 Junior Championship for Drivers
ERT
FIA European Rally Trophy (ERT) for Drivers and Co-Drivers
FIA ERT4 Trophy for Drivers and Co-Drivers
FIA Junior ERT4 for Drivers
ARC
FIA African Rally Championship for Drivers and Co-Drivers
FIA ARC4 Championship for Drivers and Co-Drivers
FIA ARC Junior Championship for Drivers
MERC
FIA Middle East Rally Championship for Drivers and Co-Drivers
FIA MERC4 for Drivers and Co-Drivers
FIA MERC4 Junior Championship for Drivers
APRC
FIA Asia-Pacific Rally Championship for Drivers and Co-Drivers
FIA Junior APRC Championship for Drivers
FIA APRC4 Championship for Drivers and Co-Drivers
FIA APRC Asia Rally Cup for Drivers and Co-Drivers
FIA APRC Pacific Rally Cup for Drivers and Co-Drivers
NACAM
FIA NACAM Rally Championship for Drivers and Co-Drivers
FIA NACAM4 Rally Championship for Drivers and Co-Drivers
FIA Junior NACAM4 Rally Championship for Drivers
CODASUR
FIA CODASUR Rally Championship for Drivers and Co-Drivers
FIA CODASUR4 Rally Championships for Drivers and Co-Drivers
Eligibility in FIA Championships 2022 &bull; ''Main article: [[Rally Pyramid]]''
Cars
See Also
Rally Pyramid
Groups Rally
Group Rally1
Group Rally2
Group Rally3
Group Rally5
References
External links
