page_title: Group 4 (racing)
section_title: Rallying
hierarchical_section_title: Group 4 (racing) / Rallying
caption_attribution_description: Un des véhicules présenté lors de la vente aux enchères Bonhams 2017 au Grand Palais de Paris.
context_page_description: The Group 4 racing class referred to regulations for cars in sportscar racing, GT racing and rallying, as regulated by the FIA. The Group 4 class was replaced by Group B for the 1983 season.
context_section_description: The Group 4 regulations were also used as the basis for the World Rally Championships until they were replaced by the Group B regulations. In mid 1970s to early 1980s rallying, it was necessary to produce 400 identical cars for homologation as a Group 4 rally car. Notable cars included the Ford Escort RS1800, Fiat 131 Abarth, Lancia Stratos HF and the Audi Quattro.
caption: Group 4 Lancia Stratos HF. The Stratos helped Lancia win the World Rally Championship in 1974, 1975 and 1976.
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