> ## Content Index > Fetch the complete content index at: https://www.the-race.com/llms.txt > Use this file to discover other available public pages before exploring further. # Crinkled McLaren rear wing among Dutch GP F1 upgrades - URL: https://www.the-race.com/formula-1/crinkled-mclaren-rear-wing-among-dutch-gp-f1-upgrades/ - Published: 2026-08-21T10:47:08.000Z - Updated: 2026-08-21T12:28:44.000Z - Description: McLaren’s latest rear wing upgrade raised some eyebrows ahead of Formula 1's Dutch Grand Prix thanks to a striking endplate solution - Author: Jon Noble - Tags: Formula 1, #mclaren, #dutch-grand-prix, #secondary_feature_1 McLaren’s latest rear wing upgrade raised some eyebrows ahead of Formula 1's Dutch Grand Prix thanks to a striking endplate solution. The second part of a development package that first arrived in Hungary has included a new rear wing, revised central bodywork and tweaked rear brake ducts. All three areas are aimed at manipulating the airflow better at the rear of the car for improved downforce, but it is the wing solution that has taken things to a new level. The rippled endplate features multiple swage lines and is a step beyond what McLaren has run so far this season. ![](https://storage.ghost.io/c/dd/af/ddafbd99-2ccd-468c-b622-4b3cccf80b49/content/images/2026/08/McLaren-MCL40-rear-wing-endplate-comparison---watermark.jpg) The idea of the ripples is to help better control the airflow coming off the rear tyre and the impact it then has on the vortex at the tip of the wing. The trend for such swage lines on the rear wing endplates was started in 2023, with Alpine and Aston Martin bringing solutions simultaneously to the Monaco Grand Prix before other teams copied it. McLaren’s latest concept pushes the boundaries more than before in an area of the car that is quite heavily restricted by regulations that limit endplate thickness. So, designs like McLaren's have to be quite intricate but also structurally robust enough to withstand the high aerodynamic forces that rear wings are exposed to. ### Gary Anderson says... It's interesting to see the extent of turning vanes that McLaren have added to the outer surface of the rear wing end plates. These vanes help the airflow that is coming off the turning vanes on the rear brake ducts, which in turn helps the performance of the diffuser. Getting that complete rear end to work as one is critical to the overall performance of the car aerodynamically. ### Aston Martin tweaks front wing ![](https://storage.ghost.io/c/dd/af/ddafbd99-2ccd-468c-b622-4b3cccf80b49/content/images/2026/08/1RAB0874.JPG) Aston Martin has made adjustments to the new front wing concept that it brought to the Hungarian Grand Prix. There is a reduced chord to the final outboard elements as well as an upgraded inboard foot. The team also has the option of fitting a new front wing flap to help give it a wider range of options to balance the car should it be needed. Aston Martin has also introduced revised floor fences and a modification to its diffuser winglet. ### Ferrari tweaks floor ![](https://storage.ghost.io/c/dd/af/ddafbd99-2ccd-468c-b622-4b3cccf80b49/content/images/2026/08/1RAB0422.JPG) Ferrari has also introduced some floor upgrades to its car that are aimed at increasing downforce across all speed ranges thanks to a more energised flow to a tweaked rear diffuser. The revisions include an updated board brace layout and vane arrangement and they work in conjunction with the changed diffuser and altered beam wing. ### Alpine's upgrade debuts on Gasly's car ![](https://storage.ghost.io/c/dd/af/ddafbd99-2ccd-468c-b622-4b3cccf80b49/content/images/2026/08/XPB_1430128_HiRes.jpg) Alpine’s major upgrade has appeared on Pierre Gasly’s car at Zandvoort, with team-mate Franco Colapinto due to get it for the next race in Italy. The changes focus on the floor area, with a new floor body, reprofiled floor boards, a tweaked floor edge and a reprofiled diffuser. All the tweaks, which are boosted by new sidepod bodywork and a new rear brake drum design, are aimed at increasing downforce and improving flow quality. The squad has struggled with a high-speed imbalance problem this season. Colapinto's older-spec Alpine was on display during the show-and-tell session, meaning we're yet to get a detailed look at the upgrades.