Tuhia he haere tonu mō tēnei wāhanga - He māmā ake te hīkoi o Broadley, he pai ake te whakahaere i te RA273 o roto. I mahi whakamiharo te motuka i te timatanga, i wikitoria i tana whakataetae Tuatahi o te Ao, te Italian Grand Prix
i Monza. Ko te Kaihauturu a John Surtees i arahi mai i a Jim Clark's Lotus me Jack Brabham's Brabham i te huringa whakamutunga, i muri i te koretake o te wahie a Clark me te tere o Brabham. Heoi, i whakapehapeha te RA300 ki te tinihanga, a koinei anake te porowhita ka arahi te motuka. Ko ia tonu te motuka F1 anake i wikitoria i tana wikitoria tuatahi i tana Grand Prix tuatahi, ana i te porowhita anake ka arahi.