LAMBORGHINI cohabits with Audi to create the new S6 model – one of two new sedans bearing the 5.2-litre V10 engine and the most potent of the current “6” series. The Audi S6 weighs two tonnes and is priced at almost $200,000, but it’s possible still to say you get a fair return for your money with a unique combination of surging performance and restrained luxury that is in direct contrast with the other German V10 muscle-car, the BMW M5. The Audi focuses more on blending high performance with luxury than the focused BMW, and is nowhere near as blatantly rapid. But, at the same time, there’s not too much around that challenges the all-wheel drive S6 sedan for on-road supremacy. It’s the seriously fast luxury car for the driver who leans towards introversion.