<prompt> Bhala ukuqhubeka kwalesi sigaba - 1970  <response>: - Izinjini ze-Offenhauser ne-Ford zilawula lo mkhakha kanti i-aerodynamics ephakathi kwezimoto ezihamba phambili ze-1961 nezinjini zangemuva ze-1970, nayo iyashiwo. Ijubane lokufaneleka nalo lidlala indima enkulu kulo lonke i-Indy 500. 