FIA confirms rear light change for Austria after Canada and Barcelona tests

The sport’s governing body, ahead of the commencement of on-track action, issued a statement noting the introduction of different rear light colours for the race at the Styrian hills. The changes will indicate new MGUK power derating following previous tests in both Canada and Barcelona.

In its statement, the FIA states: "A quick note to say we’re trying different rear light colours to indicate MGUK power derating after initial tests in Canada and Barcelona. The test will be run in FP1 and FP2 and we will decide whether we keep it for the rest of the weekend tonight.”

Earlier, the FIA confirmed that Williams and Cadillac both used a curfew exemption ahead of the Austrian Grand Prix, with no further action taken against either team.

Under Formula 1 regulations, team personnel involved in the operation of the cars are prohibited from working at the circuit during a designated overnight curfew period, which for the Austrian Grand Prix ran from 19:30 on Thursday, June 25, until 09:30 on Friday, June 26. Each team, however, is allowed to use up to five individual exemptions during the season without incurring a penalty.

Ahead of the Spielberg race, the FIA confirmed that both Williams and Cadillac made use of one of those exemptions after personnel involved in car operations were present at the circuit during the restricted period. For Williams, this marked the second of its five permitted exemptions for the 2026 season, while Cadillac used its first of five. As both teams remain within the allowed allocation, the FIA confirmed that no further action will be taken.