I’m sure many of us have heard the saying “There’s no replacement for displacement” when talking about power for vehicles. Case in point; the last-generation Audi S8 used a 5.2L V10 engine making about 450 horsepower and 398 pound-feet of torque. Well, the new 2013 Audi S8 will make anyone forget about that saying. The new S8 utilizes a 4.0L Bi-Turbo V8 engine which produces 520 horsepower and 481 pound-feet of torque, a massive improvement compared to V10. The new 4.0L Bi-Turbo V8 is also 40% lighter and gets better fuel economy numbers of 15 City/26 Highway/19 Combined when compared to the 5.2L V10’s 13 City/19 Highway/15 Combined. A good amount of the fuel economy goes towards the eight-speed automatic transmission and cylinder deactivation system. Other mechanical changes for the Audi S8 include an adjustable air suspension, a drive select system that actively adjusts steering, suspension, engine, and transmission; performance differential, and a set of performance brakes. Outside, the Audi S8 looks like a normal A8 at a glance. Look closer and you’ll notice the larger grille, aluminum side view mirrors, larger rocker sill moldings, new exhaust, and of course, the important S8 badges. Inside, the S8 receives a three-spoke steering wheel, a choice of four different interior trim materials, a white-on-gray instrument cluster display, and a number of other luxury features. Pricing for the 2013 Audi S8 begins at $110,000. Competitors for the 2013 Audi S8 include the Alpina B7, Jaguar XJ Supersport, and Mercedes-Benz S63.