2026 aero and chassis regulations

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In the 2026 engine ruleset there are some chassis prescriptions:

[Note: Chassis elements will be allowed in RV-PU volumes with the exception of:
• No part of the Survival Cell will be allowed behind Xpu=0
• A minimum width requirement for the Survival cell will mean that that the sides of the survival cell (radiator recesses) cannot enter RV-PU-ERS
• No bodywork visible from below will be allowed inside RV-PU-ICE (with an additional allowance for bodywork thickness)]

Presumably the latter limits tunnel height near the engine. Point 2 will limit the size of the fuel tank undercuts or 'radiator recesses.'

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The Audi livery was presented on the FIA 2022 concept car with one difference: the tailpipe is smaller and doesn't pass above the beam wing.

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https://www.motorsport.com/f1/news/new- ... /10354916/

Changes listed in article:

• The mounting studs between the power unit and chassis, and the power unit and transmission, requiring a tensile strength greater than 100kn from next season.

• Rear wing tethers will need to be mounted 60mm higher than in 2022

• Measures have been taken to further restrict the design of the flap and endplate juncture, which all but rules out the complex design introduced by Mercedes at the Canadian Grand Prix

• Front wing flap adjustability increased from 35mm to 40mm

• Fillet radius between the elements of front and rear wing and the brackets that can be used has been increased from 2mm to 4mm