<prompt> Bhala okuqhubekayo kwalesi sigaba - UMathieson wangenela i-ERA E-Type noLeslie Johnson njengomshayeli, ngo-1949 Richmond Trophy, Jersey Road Race kanye neBritish Empire Trophy, kanye neBritish Grand Prix ka-1950  <response>: . futhi. Eminye imithombo ithi lezi yizingcaphuno ezisemthethweni ze-ERA ngoba uJohnson wayethenge umenzi wezimoto eminyakeni emithathu ngaphambili. UMathieson wathenga iFrazer Nash Le Mans engamalitha amabili lapho athola khona ukunqoba ekilasini lama-1950 amahora angama-24 eLe Mans kanye noRichard Dickie Stoop. 