2020 Audi S8 reveals itself discreetly with 571-horsepower V8, low-key design
2020 Audi S8 reveals itself discreetly with 571-horsepower V8, low-key design Audi expanded the fourth-generation A8 range with a performance-oriented model that wears the S8 nameplate. The sedan offers motorists a generous serving of power in a discreet-looking package.…