The 2023 Audi A8 flagship luxury sedan is fresh off some updates for the 2022 model year. The automaker's top sedan rides on an extended wheelbase and uses a 335-horsepower twin-turbocharged V6 that powers all four wheels through a standard all-wheel-drive system. If you prefer a sporty version of the A8, check out the Audi S8, which employs a twin-turbocharged V8 engine.