 Kọ itẹsiwaju fun paragirafi yii - Cooper T43 jẹ ọkọ ayọkẹlẹ Formula One ati Formula Two ti a ṣe apẹrẹ ati ti a ṣe nipasẹ Ile-iṣẹ ọkọ ayọkẹlẹ Cooper fun akoko Formula One 1957, ti o han ni akọkọ ni 1957 Monaco Grand Prix : nínú ọkọ ayọkẹlẹ kan fún Jack Brabham. T43 gba ibi pataki ninu itan ere-ije ọkọ ayọkẹlẹ nigbati Stirling Moss wakọ Rob Walker Racing Team T43 lati ṣẹgun 1958 Argentine Grand Prix, Ije-ije Agbaye Ọkọ ayọkẹlẹ akọkọ fun ọkọ ayọkẹlẹ ti o wa ni arin. Láìka àṣeyọrí yìí sí, T45 rọpò ọkọ náà lẹsẹkẹsẹ. Àkọsílẹ kẹyìn tí T43 ṣe nínú ìdíje World Championship ni 1960 Italian Grand Prix. 