The European leg of the 2026 Formula 1 season continues at pace this weekend at the Barcelona-Catalunya Grand Prix, an event where many teams have opted to add updates to their cars. But what parts will each squad be running this weekend? F1.com has rounded up all of the details… Mercedes Championship leaders Mercedes are using an updated rear wing in Barcelona, featuring small winglets added on the centreline. The Silver Arrows have stated that these will increase the camber of the upper rear wing on centreline, which will generate downforce and drag “at a ratio attractive for this event”. Ferrari The most extensive wave of upgrades this weekend comes courtesy of Ferrari, the team having made updates to various components. This includes a revised front wing, which will be an evolution of that used previously with “enhanced tip flow features, coming with front wheel wake control benefits as well as increased aero balance capacity”. Another update aimed at increasing performance in local load is the floor, the Scuderia having brought an entire floor update which they say is “targeting overall aerodynamic load increase across the main car operating window”. Finally, to improve flow conditioning, Ferrari have added an inflated sidepod shoulder and adapted cokeline, developed in conjunction with the floor update. McLaren There is just one upgrade for McLaren in Barcelona, with the papaya squad running a revised front wing endplate to improve aerodynamic flow conditioning and bring enhanced aerodynamic performance overall. Red Bull Red Bull are another team to have made updates to their front wing this weekend. The wing element geometries have been revised where they meet the endplate – aiming to improve the local load and maintain flow stability – while a more cambered flap assembly has been produced in the event that the front wing