Audi RS6 Avant (C6) V10 Twin Turbo

Highlights

• V10-powered family wagon

• Excellent interior

• Recent service and coolant pipe change

• Supercar performance with Avant practicality

• Unmodified example

Overview

Whatever Audi’s engineers were eating, drinking or otherwise ingesting during the 00’s, we’d quite like to have some, as it clearly led to a wonderful kind of madness and delirium that made putting a twin-turbocharged V10 engine into its C6-era RS6 seem like a good idea. Here was a supercar-humbling, sub 5-second family car that would humble cars with significantly higher price tags, far more prestigious badges, and much less practicality. 

Sensible? Perhaps not. Headline grabbing? Certainly. 

The C6 RS6 was Audi’s response to BMW’s howling V10 M5, and Mercedes-Benz’ snarling E63 AMG. Benefitting from all-wheel drive thanks to Audi’s well-established Quattro system with a torque-biasing Torsen centre differential, this was a true everyday supercar that would fly under-the-radar to all but those that truly knew what they were looking at. Remove the subtle RS6 badges, and you’d practically blend into traffic, especially in an unmodified example such as this. In fact, our own Nic Cackett summed up the C6’s low-key styling perfectly back in September 2020, stating “de-badge the boot lid, and an Anglican vicar could arrive at Sunday mass without drawing significant comment!”

Whilst the party piece was under the bonnet, the interior benefitted from being designed and built during what many would regard as Audi’s peak design era, meaning it has aged fantastically well not just in terms of styling, but also in terms of quality and resilience to years of use.

This particular example has been in the care of the current owner for [INSERT HERE] and has been looked after by the supplying specialist cars dealership, most notably having recently had the infamous coolant pipes replaced, which will be music to the ears of any potential bidders, as it means they won’t have to have this work carried out themselves (and yes, before you ask, it’s an engine-out job!)

If you’ve been trying to work out how to get yourself into an icon of the noughties without upsetting your partner/significant other, a V10 engine at the command of your right foot, or just fancy a family wagon with  a little more wow-factor, then this is your answer. 

History and documentation

• Registered May 23rd 2008

• Stamped service book with services as follows: Apr 2009 @ 7,490 miles, May 2011 @ 14,316 miles, May 2013 @ 21,757 miles, Nov 2016 @ 28,918 miles, Mar 2018 @ 38,429 miles, Apr 2019 @ 49,647 miles, Oct 2020 @ 56,939 miles, Mar 2024 (no mileage noted), Jul 2025 @ 72,783 miles

• Two keys

• Current MOT expires 22 Jul 2026, with advisories for rear subframe corrosion and both rear brake hose ferrules being corroded

• The latest service also included replacement of the nearside rear seatbelt buckle, replacement of the high-level brake light, new offside rear tyre pressure valve, and a replacement offside front brake wear sensor

• Health check report from 2025 service

• Full Audi manual/document pack

• V5 present in owner’s name

• HPI clear

• London ULEZ compliant

Interior

• Well-appointed black leather interior in excellent condition throughout

• Both front seats are in great shape with RS6 de-bossing, and only some commensurate wear noted to the outer bolster of the driver’s seat

• Heated front seats with memory function

• Heated rear seats

• Minimal wear visible to the steering wheel, shifter and door cards

• Some patination noted to the silver-finish switches on the dashboard and centre console

• Carbon dashboard and door card trims

• Up above, the headliner is clean and taut throughout

• Being very picky, we note some indentations on the rear seat cushions, but nothing untoward

• BOSE surround sound audio

• In the rear, the boot is clean and tidy

• This RS6 does not appear to have the electronically opening/closing boot lid

• No reported faults or issues

Exterior

• Phantom Black Pearl (LZ9Y) paintwork in good order

• The bodywork looks to be straight and true throughout

• The front end exhibits the usual smattering of stone chips, particularly visible to the lower front bumper sections

• We note some patination to the brushed window trim surrounds

• The windscreen seal is cracking in a number of places

• The edges of the rear arches both show some light blemishes

• Elsewhere, we can see chips to the door edges, a number of small age-related imperfections, and two small indentations to the leading edge of the front bumper splitter

• There is a larger scratch on the nearside rear wing, and on the nearside front door lower section

• The inner lights on the boot lid (mounted on the boot panel itself) are clouded, but the outermost light units are not

• All four wheels are in excellent condition, and are wrapped in matching Goodyear Eagle F1 tyres with 2020 date codes

• There is a small gouge/area of damage on the edge of the nearside front tyre

• Overall, a very smart example of the performance family wagon, that would appear to need nothing more than a little machine polish and perhaps a new nearside front tyre to smarten it up even further

Mechanical

• 4,991cc twin-turbocharged V10 engine, producing 580bhp and 479lb-ft of torque from the factory

• Audi quotes a 4.5-second 0-62mph time, and a top speed limited to 155mph

• Six-speed automatic gearbox, sending power to all four wheels through Audi’s Quattro all-wheel drive system

• The brake discs and pads were inspected at the last service and found to be in good order

• No modifications from factory 

• Under the bonnet, the V10 engine looks to be in good order

• During our photo shoot, the car started well with no signs of smoke from cold or hot (see video below) and with no untoward behaviours noted

• No reported faults or issues

Summary

Headline-stealing at the time of launch and still blisteringly quick and effortless by today’s standards, the C6 RS6 will go down in history as one of those wonderful ‘how on earth did this get approved?’ moments from Audi’s history; can you ever see them making another twin-turbo, V10-powered Avant? We can’t.

Finished in Phantom Black Pearl and in great order throughout, this example is mercifully standard throughout, meaning it is ideal for adding to a considered car collection, or as a smart purchase for those that like their cars to be exactly as the manufacturer intended.

To arrange a viewing, click the 'Book Viewing' button located under the 'Place Bid' button. Viewings can be booked up until the day before the auction ends, after which the option will change to 'Contact Seller' for further enquiries. This seller is located in Ugborough, South Devon