2019 Audi A8: The Uber-techno Flagship Sedan Published on October 16, 2017 in First Drives by Gabriel Gélinas Photo: Audi AG 2019 Audi A8 - The turbocharged V6-powered A8 55 TFSI makes good use of a very flat torque plateau, with all 368 lb.-ft. of torque available between 1370 and 4500 rpm.