Ku qor sii socodka faqradan - Mathieson wuxuu galay ERA E-Type oo uu wado Leslie Johnson, 1949 Richmond Trophy, Jersey Road Race iyo British Empire Trophy, iyo sidoo kale 1950 British Grand Prix
Waxaad Qaar ka mid ah ilaha ayaa ku tilmaamaya kuwan inay yihiin qoraallada rasmiga ah ee ERA maxaa yeelay Johnson wuxuu iibsaday soo saaraha baabuurta saddex sano ka hor. Mathieson wuxuu iibsaday 2-litir Frazer Nash Le Mans kaas oo uu ku guuleystay fasalkiisii 1950 24 Saacadood ee Le Mans oo ay weheliyaan Richard "Dickie" Stoop.