Page 1 of 1 The heart of the new Audi S4 is quite clearly its engine, a very compact V8. Its dimensions - especially the length of only 464 millimetres - enable installation in what is likewise, for a vehicle in the B segment, an extremely slim engine compartment. The entire unit, weighing in at 195 kilograms, is just as light as its predecessor in the previous S4, a twin-Turbo 2.7-litre V6 engine. Power is transferred to the wheels via a 6-speed manual gearbox and quattro permanent four-wheel drive. Page 1 of 1