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.

Megan Bruce will return to GB4 in 2025, making the switch to three-time team champions KMR Sport for her second campaign in the championship. The 20-year-old proved herself as a dependable contender in her debut season, finishing every race and registering nine top-10 finishes in her first single-seater programme.

Scottish racer Chloe Grant will return to the GB4 Championship in 2024 with reigning champions KMR Sport.

Young Scotsman Harry Burgoyne will return to the GB4 Championship in 2024, switching to reigning champions KMR Sport for his sophomore campaign in the category.