The 2017 Audi S8 plus’ turbocharged 4.0-liter V-8 is mated to Audi’s eight-speed automatic transmission and puts out 605 hp and 553 lb-ft or torque . The Audi S8 plus is available only in the standard wheelbase. Upgrade to the Dynamic package and you’ll get Audi ceramic brakes, sport exhaust, carbon fiber details and an increased track speed.
In EPA ratings that were made more stringent for 2017, the S8 is rated at 15/24 mpg city/highway. If you’re also considering the 450-hp 4.0T Sport model, that car is EPA-rated for 2017 at 18/29 mpg.