Sauber has been prolific with its upgrade cycle in the opening races of Formula 1's 2025 season, and the Swiss team has aimed to show Audi "a positive trend" and simultaneously improve its processes back at base.
The Hinwil team has introduced a revised floor and rear wing assembly for the Japanese Grand Prix, having previously trialled a new front wing in Australia and new sidepods in China. This follows on from the team's busy end to 2024, in which it appeared to drastically pick up the pace with its cadence of updates.
