Just one trim is offered for the 2021 Audi S8. It is powered by a 4.0-liter twin-turbo V8 TFSI engine that gets assistance from a 48-volt mild-hybrid system. In total, the car generates 563 hp and 590 lb-ft of torque. Quattro all-wheel-drive is standard, as usual, along with a sport rear differential and all-wheel steering. This makes the luxury sedan capable of sub-four-second 0-60 sprints and a top speed of 155 mph. HD Matrix-design headlights and a panoramic sunroof are standard fare along with 21-inch wheels and adaptive suspension. Inside, you’ll find gorgeous Valcona leather with diamond stitching, carbon inlays, and three different screens for driver info, the infotainment system, and control of the quad-zone automatic climate control system.