Doc 52 - New PU elements for this Competition
Technical/Scrutineering
Technical Delegate's Report: New PU Elements
Date: 08 March 2026 From: The FIA Formula One Technical Delegate To: The Stewards
Following the inspection of the cars, several drivers are using new Power Unit (PU) elements for the remainder of the 2026 Australian Grand Prix. All changes are within the permitted allocation for the 2026 season.
1. Energy Store (ES)
| Number | Car | Driver | Previously Used ES |
|---|---|---|---|
| 55 | Atlassian Williams Mercedes | Carlos Sainz | 1 |
| This is the 2nd of 3 allowed units for the season (Ref: B8.2.2 d). |
2. Control Electronics (PU-CE)
| Number | Car | Driver | Previously Used PU-CE |
|---|---|---|---|
| 55 | Atlassian Williams Mercedes | Carlos Sainz | 1 |
| This is the 2nd of 3 allowed units for the season (Ref: B8.2.2 e). |
3. Power Unit Ancillary Component (PU-ANC)
| Number | Car | Driver | Previously Used PU-ANC |
|---|---|---|---|
| 55 | Atlassian Williams Mercedes | Carlos Sainz | 1 |
| 18 | Aston Martin Aramco Honda | Lance Stroll | 1 |
| 05 | Audi | Gabriel Bortoleto | 1 |
| These are the 2nd of 6 allowed units for the season (Ref: B8.2.2 g). |