N'afọ 1922, Bamford & Martin rụpụtara ụgbọala iji sọọ mpi na French Grand Prix, nke gara n'ihu setịpụ ihe ndekọ ọsọ ọsọ na ntachi obi ụwa na Brooklands. E wuru ụgbọ ala atọ na-arụ ọrụ nke nwere 16-valve cam engine abụọ maka ịgba ọsọ na ndekọ ndekọ: nọmba chassis 1914, emesị mepụtara dị ka Green Pea; nọmba chassis 1915, ụgbọ ala ndekọ Razor Blade; na nọmba chassis 1916, emesị mepụtara dị ka Halford Special. Ihe dị ka ụgbọ ala 55 ka e wuru maka ire ere na nhazi abụọ; ogologo chassis na obere chassis. Bamford & Martin dara ogbenye na 1924 ma zụta ya site na Dorothea Charnwood, onye tinyere nwa ya nwoke John Renwood. Renwood & Martin nwetara ego site na Count Louis Zborowski. N'afọ 1922, Bamford & Martin rụpụtara ụgbọ ala iji sọọ mpi na ịgba ọsọ ọsọ na ịgba ọsọ ọsọ na Brooklands.
Enfield-Allday chassis