Max Verstappen is serious about his F1 quit threat, Red Bull's Helmut Marko says. Red Bull motorsport advisor Helmut Marko says Max Verstappen 's F1 quit threat should be taken “seriously”.

Red Bull senior advisor Helmut Marko has warned that Max Verstappen's Formula 1 exit threats amid FIA's F-bomb controversy must be taken seriously.

Former NASCAR champion Kyle Larson said he 'knows he's better' than Max Verstappen earlier this year and has held talks with McLaren CEO Zak Brown about an F1 test