The SRO-licensed GT4 Winter Series will welcome a new class for its second season in 2025 with the addition of a club category for older GT4 machinery.
As was the case in 2024, there will be Pro, Pro-Am and Am classes for driver line-ups of differing rankings, alongside the Cayman Trophy class for Porsche Cayman GT4 CS entries. These four classes will be joined by the new-for-2025 club class, for older GT4 machinery with expired homologations.
SR Motorsport will once again join the GT4 Winter Series grid, fielding four cars across two
categories. As one of the 2024 frontrunners, the Niederzissen-based outfit will be the benchmark for other renowned German teams, including BWT Mucke Motorsport, FK Performance and W&S Motorsport.
UK-based teams like SVG Motorsport, Century Motorsport will also be a prominent part of the grid, and the overall feeling of the paddock will be pan-European.
The 2025 GT4 Winter Series is expected to have varied grids with 20 to 30 cars depending on the circuit and round.
Three races will be contested on each of the five GT4 Winter Series weekends: Two 30-minute sprint races, in addition to a 60-minute endurance with a mandatory pitstop.
Estoril hosts the first round of the season, on 16-19 January. One week later, the second round will be held in Portimao. The Spanish leg of the season begins in Valencia on 13-16 February, followed by a pair of consecutive events held at Aragon, 27 February-2 March, and Barcelona on 6-9 March.
Every race will be streamed on the Winter Series YouTube channel in collaboration with broadcast experts Alpha Live. In addition, access to the circuit during Winter Series weekends is free, with the only exception being the final event in Barcelona.
