Kammala wannan jumla: An yi gyare-gyare ga jiki da kuma sauya canji don motocin GP2 da GP3 na 1949 da 1950 na gaba, GP3 kuma ya sami matattarar matattarar matattara biyu. An sake gina su don yin oda, kuma an ba su Geoffrey Crossley da Joe Kelly bi da bi. Crossley ya ɗauki GP2 zuwa Grand Prix na Belgium na 1949, amma zai iya gudanar da matsayi na bakwai kawai. A cikin 1950 ya kafa wasu bayanan sauri sama da mil 50, kilomita 50 da kilomita 100 a kan hanyar Montlhéry. Kelly ya fi mai da hankali kan tseren Irish, kuma mafi kyawunsa shi ne na uku a gasar Ulster Trophy ta 1952. Dukansu direbobi biyu sun dauki sassan su zuwa ga
Babban Gasar Burtaniya ta 1950, tseren farko na Gasar Cin Kofin Duniya na Formula One. Duk da haka, yayin da Kelly ya gama, ba a ba shi izini ba; Crossley ya yi ritaya tare da lalacewar watsawa.