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There is a newer version of this car Read the latest Audi A6 S6 (12-18) review here

Audi A6 S6 (2006-2011) review

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Parkers overall rating: 4.5 out of 54.5

At a glance

Price new £55,455 - £60,945
Used prices £3,678 - £9,372
Road tax cost £760
Insurance group 42 - 43
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Fuel economy Not tested to latest standards
Range 370 - 387 miles
Number of doors 4 - 5
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Available fuel types

Petrol

Pros & cons

PROS

Stunningly quick, sounds superb, unassuming looks

CONS

High running costs

Written by David Ross Updated: 15 September 2025

Overview

The S6 may not look that different from a standard A6 but don’t be fooled. Thanks to a mighty V10 engine borrowed from the Lamborghini Gallardo it has astonishing straight-line speed and a soundtrack to match. With 429bhp on tap it’s no wallflower and delivers scintillating performance plus thanks to the quattro four-wheel drive system, traction is excellent and there’s no danger of wheelspin.

Available as a saloon or Avant it is undoubtedly quick but has the price tag and running costs to go with it.

Parkers top buying tips

As with all used purchases, do remember to get a car history check. It might just save you from an unpleasant surprise later down the line. Also, don’t forget you can use our valuation tool to get an idea of how much you should be paying for a car. You can also check our reviews section for more information about the cars you are interested in.