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Unsurprisingly for the second weekend of a flyaway double-header, not many Formula 1 teams have brought upgrades to the Japanese Grand Prix.
But last week's surprise winner Ferrari is a significant exception.
Mark Hughes takes a look at what's new at Suzuka.
Ferrari
![](https://www.the-race.com/content/images/2023/09/IMG_8635.jpg)
The Singapore GP winner has a new floor, with revised inlet vanes, edges, underfloor and diffuser.
Ferrari says the focus has been on loss management, to give greater efficiency.
Mercedes
![](https://www.the-race.com/content/images/2023/09/IMG_8622.jpg)
There's a new vane added to the rear wing endplate which creates a vortex to further energise the airflow on the underside of the wing.
McLaren
![](https://www.the-race.com/content/images/2023/09/IMG_8618.jpg)
A less loaded beam wing for McLaren to match the efficiency requirements of this track and a packer around the sidepod inlet which is claimed to improve the aero/cooling trade-off.
Aston Martin
Just a smaller front brake duct inlet to match the relatively low braking demands of Suzuka.
AlphaTauri
![](https://www.the-race.com/content/images/2023/09/IMG_8640.jpg)
The junction of the rear wing endplate with the elements has been reprofiled for lower drag.
The removal of vanes from the mirror is part of a comparison test with standard so as to judge the trade-off between drag improvement and less control of the airflow wake from the front wheels.
Williams
![](https://www.the-race.com/content/images/2023/09/IMG_8652.jpg)
The most inboard vane of the floor inlet has been lowered for drag reduction.
Red Bull, Alpine, Alfa Romeo, Haas: No reported updates.