The Junior Car Club 200 Mile race was a voiturette and later Grand Prix motor race, first held in 1921. It was held on various layouts of Brooklands, and twice at Donington Park.

Kenelm Edward Lee Guinness MBE was an Irish racing driver of the 1910s and 1920s mostly associated with Sunbeam racing cars. He set a new Land Speed Record in 1922. Also an automotive engineer, he invented and manufactured the KLG spark plug. Additionally, aside from motorsport and mechanical interests, he was a director of the Guinness brewing company.