In international rallying, the Groups Rally are the collective name given to formulae of rally car as defined by the Fédération Internationale de l'Automobile for use in the World Rally Championship and the FIA's regional championships. The names were approved in June 2018 and began being used in 2019 in conjunction with promotion of the Rally Pyramid, a reorganisation of rallying nomenclature, car specifications and championships.[1] As of 2020, the groups' names are officially defined as replacing Group R in the FIA's competitions.[2] The numbering used in the names of the new groups align with the FIA sporting classification, Rally1 is in RC1, Rally2 in RC2, and so on. From 2022 the championships will also align to these numbers, WRC2 shall use Rally2 cars whereas ERC3 for example, will Rally3 cars.