Whakaotihia te rerenga e whai ake nei: I whakawhiwhia a Walker ki te nohoanga F1 wa-katoa ki te taraiwa i te Lotus 72 i te tau 1972, hei kaihauturu tuarua ki a Emerson Fittipaldi. Heoi, i te wa e haere ana te wa, ka nui haere te pouri o Walker me te roopu. Whai muri i te kitenga o Lotus i whakamātauria e Walker tētahi motokā Momo Tuarua mō tētahi atu kapa, ka tukuna atu ia i te kapa mō te
Ko te GP Itari me te GP o Kanata, i whakakapia ai e Reine Wisell. I hoki mai a Walker mo te US GP, engari i reti.