Audi RS 6 Avant
The Audi RS6 redefines the term "high performance" in the business class. With its 426 kW (580 bhp), it is the most powerful model in the current Audi range and – with the exception of pure racing cars like the Le Mans-winning Audi R10 TDI – the most potent Audi of all time. But not only that: it is also clearly superior to all competitors in the top performance category.
The ten-cylinder V-configuration engine in the RS6 is based on the V10 powerplants of the Audi S6 and Audi S8, but has been redeveloped in practically every respect to attain the significantly higher level of performance. The twin turbochargers ensure an impressively constant stream of power over the entire engine speed range: the mighty peak torque of 650 Nm is available across the entire range from 1,500 to 6,250 rpm; maximum output is available between 6,250 and 6,700 rpm.
This powerplant enables the Audi RS6 Avant to achieve the road performance of a high-performance sports car. It requires just 4.6 seconds for the sprint from a standing start to 100 km/h, and reaches the 200 km/h mark in a mere 14.9 seconds. Only when the needle touches 250 km/h is the propulsive power electronically governed. The power-to-weight ratio, too, matches that of a first-rate sports car: after all, with a vehicle weight of 2,025 kilograms – including the dynamic and sure-footed quattro four-wheel drive – every horsepower of the RS6 Avant has to propel just 3.5 kilograms.
A further feature adopted from racing technology is the dry-sump lubrication system used on the V10. By virtue of the elaborate design of the oil pump module and oil tank, reliable lubrication of all engine components and both turbochargers is guaranteed, even with constant lateral acceleration of 1.2 g.
Thanks to FSI technology and the optimised design of the turbocharger and air ducts, the ten-cylinder unit is extremely responsive and converts minimum movements of the throttle into dynamic acceleration. Yet the twin turbo is by no means a rough-and-ready sports engine: it runs smoothly and with refinement, as is typical of a ten-cylinder unit. When accelerating, of course, its dual-branch exhaust system with two oval tailpipes produces that sonorous sporty, throaty sound – an essential feature of a high-performance automobile. Those who wish to enhance this daily delight for the ears even further may opt for the alternative sports exhaust system.
Source: Audi press