Audi RS 6 Avant
The Audi RS6 quattro, commonly referred to as the RS6, is the highest performing version, and top-of-the-line specification of the Audi A6, positioned above the Audi S6. It is a mid-size sports-focused executive car, produced by the high performance private subsidiary company quattro GmbH, for Audi AG, part of the Volkswagen Group.
Both versions of the RS6 are, or have been produced as, a five-door five-seat "Avant", Audi's name for an estate car–station wagon, along with a four-door five-seat saloon–sedan.
The original Audi C5 RS6 quattro was the top-of-the-line user of the Volkswagen Group C5 platform and was initially available as a five-door five-seat Avant - Audis name for an estate or station wagon.
Official performance figures for the Avant, whilst consuming the recommended high octane 98 RON "Super Plus" unleaded petrol indicate the 0-100 kilometres per hour (62.1 mph) dash would be completed in 4.6 seconds (s), reaching 200 km/h (124.3 mph) in 16.8 seconds (16.6 s for the saloon). Official figures state an electronically limited top speed of 250 km/h (155.3 mph), although most "RS" owners report that the speed limiter is rather liberal on all RS cars, with genuine 'limited' top speeds of 270 km/h (167.8 mph) being possible to achieve. Using a lower octane rated petrol, such as the standard 95 RON "Premium" unleaded will reduce the engine power output, and have logical reduction in performance.
Source: Wikipedia, 2011