<prompt> Bhala okuqhubekayo kwalesi sigaba - u-Ertl wayenezintshebe zesitayelasombuso nentshebe egcwele. Wasebenza ngendlela yakhe ngokusebenzisa i-German Formula Vee ne-Super Vee, wabe eseya ku-Formula Three, ngaphambi kokushintshela ngempumelelo ku-Touring Cars. Ngalesi sikhathi, wathola uxhaso olwanele lokungena kwiFormula One, lapho ashayela khona nezingubo ezahlukahlukene phakathi kuka-1975 no-1980. U-Ertl wayengomunye wabashayeli abane abasiza uNiki Lauda ukuba aphume eFerrari yakhe eyayishisa ngo-1976 emjahweni waseJalimane  <response>: . futhi. 