The S6 was always a badge to be considered when talking about fast Audis, and the 2006 model was no exception from that rule.
It was a supercar with a regular, taxi-like, bodywork.

When Audi bought the Lamborghini, the new management thought to do something more than selling steering wheels and buttons for the Italian sports-car company. So, they took the V10 engine from the Gallardo and installed it into an A6. And that’s a part of how the Audi S6 was born.

From the outside, the Audi S6 was very similar in its look to a regular A6 turbodiesel, which was used by a lot of taxi-drivers in Germany, but with a different color. There was another difference on the front, where the S6 featured a big, single-frame silver grille. At the back, four oval exhausts were shown under the rear apron.

The interior was luxurious, with sport-bucket seats in the front and a comfortable bench seat in the back. The rest of the features found in a well-equipped Audi A6 were fitted as standard in the S6. But the magic was underneath the skin.

The 5.2-liter V10 engine was taken from the Gallardo and it developed 440 hp. It was mated to a specially developed 6-speed Tiptronic automatic gearbox. It wasn’t a double-clutch system, but a torque-converter based one. As usual for all the Audi S models, it featured an all-wheel-drive system with e Torsen center differential and a limited-slip differential in the back. As for the performances, the Audi gentleman agreement made with Mercedes-Benz and BMW forced them to limit the car to 250 kph (155 mph), which was enough for most of the world.