<prompt> Pedzisa mutsara unotevera: Ensign akapinda muFormula One muna, achitsigirwa nomutyairi wemari, Rikky von Opel. Von Opel akanga atyaira chikwata muFormula Three muna 1972 uye akakunda Lombard North Central, British Formula Three Championship gore iroro. Zvichibva pakubudirira ikoko, von Opel akarayira chassis yeFormula One. Mwaka wavo wokutanga wakanga usina kubudirira, von Opel akapedza makwikwi maviri chete uye mugumisiro wakanakisisa wechikwata mwaka iwoyo waiva 13th pa 1973 British Grand Prix. Zvisinei, kudyidzana kwakaramba kuchienderera mberi kusvika muna, asi von Opel akasiya mushure memakwikwi ekutanga emwaka, mushure mekupiwa basa reBrabham drive. Akatsiviwa paEnsign naVern Schuppan uyo akapedza bedzi ari wechi15 pa  <response>: Grand Prix yeBelgium uye gare gare iye amene akatsiviwa naMike Wilds. Wilds akasarudzwa chete muAmerica; akapedza nhangemutange mushure mokumira kwemafuta asi haana kuiswa, mapfumbamwe kumashure. 