48-Volt Mild Hybrid System to Come Standard on All A8s By Sebastien Bell Jun 01 2017 Share this Article Tweet Set to launch on July 11 in Barcelona, the brand new Audi A8 will feature a 48-volt “mild-hybrid” system to improve fuel economy. Continue Reading... Filed under: Audi Featured Articles German Hybrids Luxury Cars SedansTags: a6, a7, a8, Audi, mild-hybrid system