<prompt> Qedela le nkulumo elandelayo: URolt waqhudelana emijahweni emithathu ye-Formula One World Championship, i-British Grands Prix ka-1950, 1953, 1955, kodwa yonke imijaho emithathu yaphela ngokuthatha umhlalaphansi. Ngesikhathi  <response>: Ngo-1950 iBritish Grand Prix, umqhudelwano wokuqala weF1 World Championship, waqala endaweni yeshumi ku-grid nge-ERA eyayikhethwe nguPeter Walker, kodwa i-gearbox yahluleka ngemuva kwemijikelezo emine. Emncintiswaneni wango-1953, waphinde waqala endaweni yeshumi, kodwa ingxenye yomgodi weConnaught yakhe yahluleka ngemva kwemijikelezo engu-70. Emncintiswaneni wakhe wokugcina weGrand Prix, waphinde wahlanganyela idrayivu noWalker ngo-1955. Kulokho okwakuzoba uhambo lokugcina lwe-F1 kubo bobabili abashayeli: i-Connaught yabo yaqala ngo-14 futhi yaphuma ngenxa yenkinga yokudlulisa ngemva kwemijikelezo engu-18. UStirling Moss uthi u-Rolt ngabe uphakathi kwabashayeli abahamba phambili be-GP, ukube wayegijima njalo. 