Dee ihe na-aga n'ihu maka paragraf a - N'afọ 1964, Reg Parnell Racing bidoro ịgba ọsọ nke 25, na-eji injin BRM P56 V8, na obere ihe ịga nke ọma. Chris Irwin tinyere Reg Parnell Racing 25/33 ngwakọ nke asaa na agbụrụ ikpeazụ nke World Championship na 1967 Dutch Grand Prix
, bụ ebe ihe nlereanya ahụ mere n'afọ ise gara aga.