Kammala jumla mai zuwa: Motar Cooper ta farko da ta shiga cikin Formula One Grand Prix ita ce Harry Schell's Mark IV, wacce aka sanya ta da injin V-twin, a gasar Monaco ta 1950. Koyaya, gudummawar Maddock ga wannan ƙirar ba ta da yawa. Motocin Cooper Bristol na Cooper da ke da injin gaba na gargajiya sun kuma yi takara a gasar cin kofin duniya da yawa a lokacin gasar Championship's Formula Two a cikin shekaru da kuma. Mike Hawthorn sanannen misali mai sauri ya ɗauki matsayi na huɗu a 1952 Belgian Grand Prix don samun maki na farko na gasar zakarun duniya ga Cooper, kuma na uku a
1952 Gasar Birtaniya. Tsarin Cooper Bristol ya dogara ne akan na Mark V Formula Three mota, kodayake, tare da Maddock ya zama mai zane.