2017 British Touring Car ChampionshipPrevious2016Next2018Support series:2017 Ginetta Junior Championship2017 Ginetta GT4 Supercup2017 F4 British Championship2017 Porsche Carrera Cup GB2017 Renault UK Clio Cup With both BMW and Vauxhall returning to the series this year as manufacturer outfits - joining the existing Honda, Subaru and MG teams, the 2017 season featured five manufacturer backed teams on the grid for the first time since the end of the popular Super Touring era of the sport.