2026 TEAM DEVELOPMENT

2026 Williams F1 upgrades

23 F1 car upgrade entries for Williams across 9 reviewed 2026 FIA Car Presentation Submissions, organised by Grand Prix and car part.

Reported entries23
GPs with entries9 / 14
Most reported areaBodywork & cooling
Latest listed GPItalian GP
CAR AREAS

Reported areas

Bodywork & cooling8Floor5Front suspension4Front wing2Rear wing2Rear suspension1Diffuser & rear edge1
GRAND PRIX BY GRAND PRIX

Development record

2026.09.04

Italian GP

3 entries →
Bodywork & cooling

Vertical fences added around the halo

Geometry intended to alter the pressure distribution around the cockpit.

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Front wing

Shorter front-wing flap chord

Revised the rearmost wing element.

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Floor

Trimmed floorboard

Local changes to the board ahead of the main floor.

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2026.07.17

Belgian GP

3 entries →
Rear suspension

New rear-wheel assembly

New geometry for the rear-wheel assembly, as described in the FIA submission.

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Floor

Revised floor

Revised specification for the floor, as described in the FIA submission.

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Floor

New floor

New geometry for the floor, as described in the FIA submission.

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2026.06.12

Barcelona-Catalunya GP

1 entries →
Rear wing

Enlarged rear wing

Larger openings or dimensions for the rear wing, as described in the FIA submission.

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2026.05.22

Canadian GP

3 entries →
Front suspension

Adjusted front-wheel assembly

Adjusted cooling specification for the front-wheel assembly, as described in the FIA submission.

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Front suspension

New front-wheel assembly

New geometry for the front-wheel assembly, as described in the FIA submission.

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Bodywork & cooling

Revised rear bodywork

Revised specification for the rear bodywork, as described in the FIA submission.

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2026.05.01

Miami GP

7 entries →
Floor

Enlarged floor

Larger openings or dimensions for the floor, as described in the FIA submission.

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Bodywork & cooling

Adjusted bodywork

Adjusted cooling specification for the bodywork, as described in the FIA submission.

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Bodywork & cooling

Adjusted bodywork

Adjusted cooling specification for the bodywork, as described in the FIA submission.

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Bodywork & cooling

New bodywork

New geometry for the bodywork, as described in the FIA submission.

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Bodywork & cooling

Enlarged rear bodywork

Larger openings or dimensions for the rear bodywork, as described in the FIA submission.

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Bodywork & cooling

Reduced bodywork

Reduced openings or dimensions for the bodywork, as described in the FIA submission.

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Bodywork & cooling

New car components

New geometry for the car components, as described in the FIA submission.

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2026.03.27

Japanese GP

1 entries →
Front suspension

New front-wheel assembly

New geometry for the front-wheel assembly, as described in the FIA submission.

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