Tuhia he whakamāramatanga mō tēnei wāhanga - I whakatauhia e te FIA mai i te tau 1966, ka whai mana mai ngā ture pūkaha 3 rita hou. He iti ake te whakataetae a Lotus. I te tīmatanga me te 2-rahi Coventry-Climax engine i roto i te Lotus 33, kaore a Clark i eke ki nga tohu tae noa ki te British Grand Prix
me te tūranga tuatoru i te Dutch Grand Prix e whai ake nei. Mai i te Italian Grand Prix i muri mai ka whakamahia e Lotus te miihini BRM H16 tino uaua i roto i te motuka Lotus 43, i wikitoria ai a Clark i te US Grand Prix. I eke ano ia ki te tuarua i te Indianapolis 500, i tenei wa kei muri o Graham Hill.