Jos Verstappen has involved himself in the saga surrounding the rear wing of McLaren, reposting images showing how the rear wing of the MCL39 flexes compared to the rear wing of the Red Bull. During the winter testing days in Bahrain,

Flexi-wings remain a hot topic in F1 despite multiple interventions from the FIA. Red Bull driver Max Verstappen says “a lot of people [can] see how McLaren’s rear wing has been flexing in the early part of the 2025 Formula 1 season, sparking intrigue about the legality of the car.

Jos Verstappen has shared a post on social media which compared McLaren's rear wing in Japan to a 'monster'. The use of flexi-wings in Formula 1 was a topic of significant debate last season, with many teams complaining about their implementation.