The 2018 Campeonato Nacional de Velocidade Turismos is set to be the fourth season of Campeonato Nacional de Velocidade Turismos (en: Portuguese Touring Car Championship) that will run under the TCR regulations. The series is organised by the Federação Portuguesa de Automobilismo e Karting (FPAK) and Full Eventos under the Racing Weekend banner. Francisco Mora is the defending drivers' champion.
The original version of the calendar, which included 5 stages, was changed on April 4 due to the need for teams of more time to prepare for participation in the new season. All events will be held in Portugal.[4][5] For works in the Estoril circuit, the Federação Portuguesa de Automobilismo e Karting, together with the promoter of the event, opted for the change of the 4th stage for the Braga circuit.[6]