<prompt> Bhala okuqhubekayo kwalesi sigaba - Kwenziwe izinguquko emzimbeni nasekushintsheni kwamagiya ezimotweni ze-GP2 ne-GP3 ezalandela zango-1949 nango-1950, i-GP3 nayo yathola i-supercharger enezigaba ezimbili. Nalapha futhi zakhiwa ngokwezifiso, futhi zanikezwa uGeoffrey Crossley noJoe Kelly ngokulandelana. U-Crossley wathatha i-GP2 e-1949 Belgian Grand Prix, kodwa wakwazi ukuphatha indawo yesikhombisa kuphela. Ngo-1950 wabeka amarekhodi amaningi okusheshisa ngaphezu kwamamayela angama-50, amakhilomitha angama-50 namakhilomitha ayi-100 esifundeni saseMontlhéry. UKelly wagxila kakhulu emijahweni yase-Ireland, futhi indawo yakhe enhle kakhulu kwaba ngowesithathu ku-1952 Ulster Trophy. Bobabili abashayeli bathatha i-chassis yabo ku-1950 British Grand Prix  <response>: , umjaho wokuqala weFormula One World Championship. Kodwa-ke, ngenkathi uKelly eqeda, wayengaziwa; uCrossley wathatha umhlalaphansi ngephutha lokudlulisa. 