Mezue ahịrịokwu na-esonụ: Ọsọ mbụ nke oge 1969 bụ South African Grand Prix na John Surtees na Jackie Oliver na-anya ụgbọ ala, Surtees na-anya P138 na Oliver na BRM P133, Surtees lara ezumike nká n'ọsọ ahụ na engine engine. Surtees gbara onye nke ise na
Ọ bụ Spen. Na Monaco Grand Prix hụrụ Surtees ka ọ lara ezumike nká na gearbox mebiri emebi n'ihi na ọ tụfuru gia na Brabham nke Jack Brabham na-akụda n'azụ Surtees. Onye England ahụ bịara nke itoolu na Holland. BRM hapụrụ asọmpị French Grand Prix n'ihi nrụzigharị ndị otu ahụ, na Tony Rudd na-apụ na mmalite dị egwu nke BRM P139. E jighị P138 mee ihe na Britain n'ihi na Surtees na-anya P139 mana P138 pụtara ọzọ na German Grand Prix na Jackie Oliver na-anya ụgbọ ala mana ọ lara ezumike nká na mmanụ mmanụ. Ejila P138 mee ihe na Italy n'ihi na Oliver nwere P139 nke abụọ ịnya ụgbọ ala mana P138 pụtara ọzọ na Canadian Grand Prix na Canada Bill Brack na-anya ụgbọ ala mana ọ bụ okirikiri iri ma ọ bụghị nkewa. Onye Canada bụ George Eaton nọchiri Brack mana ọ lara ezumike nká n'ọsọ abụọ ikpeazụ nke 1969, nkwarụ injin na United States na gearbox mebiri emebi na Mexico.