A small shark fin goes down the engine cover, and supports a low T-wing above the exhaust and spanning almost the entire width of the rear wing.[5] One of the most significant updates of the season came at the Spanish Grand Prix, where Ferrari changed the way the mirrors were mounted, switching from a "standard" position to having them mounted on the Halo. They also added a winglet above each mirror, but the FIA deemed them illegal, despite claims from the team that they were intended to support the mirrors.