Portimao April testing : Sheldon van der Linde, Schubert Motorsport, Maro Engel, Mercedes-AMG Team GruppeM Racing, René Rast, Team ABT Sportsline.
Sheldon van der Linde, Schubert Motorsport, Maro Engel, Mercedes-AMG Team GruppeM Racing, René Rast, Team ABT Sportsline.