Karter Lily-May Watkins will make her single-seater debut in 2025, as she moves up to the GB4 Championship with three-time team champions KMR Sport. The 17-year-old from Hertfordshire began karting in 2019 at Rye House and initially competed in one-day junior race events, where she was a podium finisher.

Dayton Coulthard is joining Douglas Motorsport as a driver for 2025, and will compete in the GB4 Championship.

Canadian Callum Baxter will remain with the Graham Brunton Racing squad as he returns to the GB4 Championship for a sophomore campaign in 2025. 

The Tatuus MSV GB4-025 car which will be used in the GB4 Championship from the 2025 season onwards made its first public appearance at Silverstone today (Friday).