Used Audi RS6 Avant for sale near Isleworth

CarGurus expert rating: 4 out of 5
CarGurus user rating: Not available
Percentage of good/great deals available on CarGurus: 25.8%
Overall CarGurus rating:* 3.8 out of 5
Available Listings: Around 100
Average Price: Around £82,000

Audi RS6 Avant C7 (2013-2018) Pros and Cons

Pros	Cons
Supercar performance meets estate car practicality	Not as much fun as a BMW M5
Beautifully made and spacious cabin	Hugely thirsty V8 engine
Four-wheel drive helps use the RS6's performance in wet weather	No saloon version available

Quick Summary

The Audi RS6 Avant C7 (2013-2018) is a high-performance estate car that combines supercar-level acceleration with practical family transport. The third-generation RS6 is Avant-only, powered by a 4.0-litre twin-turbo V8 engine producing 552bhp in early models, upgraded to 597bhp in the 2015 Performance variant. All models feature quattro all-wheel drive and an eight-speed automatic gearbox, delivering 0-62mph in 3.9 seconds (3.7 seconds for Performance models). The 565-litre boot rivals the largest estate cars on the market, whilst the beautifully appointed interior features leather seats, Bose sound system, and four-zone air-conditioning as standard.

Running costs are substantial, with realistic fuel economy in the low-to-mid 20s mpg despite official figures of around 29mpg. Servicing costs approximately £500 annually, whilst performance tyres and brakes are expensive replacements. The RS6 is a luxurious, velvet-wrapped sledgehammer rather than a pin-sharp sports car, offering monstrous power and impressive practicality. It's not the sharpest handling rival, but its ability to deliver supercar pace from standstill whilst accommodating the family makes it a compelling alternative to large performance SUVs.

Best for: Buyers seeking supercar performance with estate car practicality, those prioritising four-wheel-drive capability, and families wanting a high-performance vehicle without sacrificing space.

Not ideal for: Budget-conscious buyers, those seeking the sharpest handling dynamics (like a BMW M5), or drivers concerned about fuel consumption and running costs.


Comparison vs Key Rivals



The Verdict

You should buy the RS6 Avant if: You want supercar performance with estate car practicality, prioritise four-wheel-drive capability, or seek a high-performance family vehicle without sacrificing space.

Consider alternatives if: You're budget-conscious, prioritise the sharpest handling dynamics, or are concerned about fuel consumption and running costs.

Competitive Position: The Audi RS6 Avant C7 is a compelling high-performance estate car that delivers monstrous power and impressive practicality. Whilst rivals like the BMW M5 offer sharper handling and the Mercedes-AMG E63 provides more engaging dynamics, the RS6's combination of supercar acceleration, four-wheel-drive capability, and genuine family-friendly space makes it a distinctive proposition. It's a luxurious, powerful alternative to large performance SUVs, best suited to those prioritising performance and practicality over outright handling finesse. The beautifully appointed interior and excellent build quality reinforce its premium positioning.

Read our full Audi RS6 Avant Review

*The Overall CarGurus rating: that informs these recommendations is based on CarGurus' proprietary market data from March 2026, CarGurus expert reviews, and CarGurus user reviews.