4N MY24 Sedan 4dr Tiptronic 8sp quattro 4.0TT Reigning at the top of Audi's large A8 sedan range, the S8 comes decked out with all the luxury appointments you'd expect - and more. Its 420kW/800Nm of twin-turbo V8 power arguably makes it a better proposition than the Mercedes-Benz S-Class and the much less powerful BMW 740i - which is powered by a mere 3.0-litre inline turbo-six. Standard equipment on the luxury S8 limousine includes 21-inch alloy wheels, HD Matrix LED headlights, active air suspension, dynamic all-wheel steering, quad-zone climate control, head-up display, panoramic sunroof, power-assisted door closure, heated front seats and armrests, and Audi's virtual cockpit digital instrument cluster.