
Caroline, who beat Oscar Piastri and Logan Sargeant to win the 2017 British F4 title, made a successful switch to sportscars in 2020 by sweeping to the GT4 crown in a TF Sport Aston Martin alongside Dan Vaughan.
He switched last year to the GT4 European series in a Mercedes, but returned to the British championship to partner Ferguson for the final two rounds aboard the Speedworks Toyota Supra in GT4 and led impressively in the wet at Oulton Park.