V6 performance, quattro confidence and luxury estate practicality with flexible finance and a 90-day Carsa warranty

The Audi S6 Avant combines high-speed performance with the everyday usability of a spacious estate. It is built for those who need room for family, luggage or long journeys, but still want the punch of a performance saloon. A used Audi S6 Avant for sale offers a premium experience with effortless power, advanced tech and true all-weather confidence.
At Carsa, every S6 Avant includes a 90-day warranty, valid MOT, optional Platinum Maintenance Repair Cover and flexible finance from 8.9% APR. Use our fast and secure Reserve and Collect service to secure yours online today.
Why the Audi S6 Avant is the executive performance estate with more to offer
Spacious estate body with sporting style
The S6 Avant brings together Audi’s elegant design with subtle sporting touches, including quad exhaust pipes, wider air intakes and S-specific detailing. The interior is refined and full of premium materials, with room to seat five adults in comfort.
With 565 litres of boot space, expandable to over 1,680 litres, it offers all the practicality you’d expect from a family estate, while maintaining a sleek and purposeful stance on the road.
Engines and performance
The most recent UK S6 Avant models feature a powerful diesel engine designed for smooth, high-speed touring and better efficiency:
- 3.0 litre V6 TDI mild-hybrid diesel
- 344 PS and 700 Nm of torque
- 0 to 62 mph in just 5.1 seconds
- 8-speed Tiptronic automatic transmission
- quattro all-wheel drive for confident grip in all conditions
- All-wheel steering on selected trims for greater agility
Earlier S6 Avants were powered by petrol V8 and V6 engines, offering even more punch for performance-focused drivers.
Technology and interior features
Audi has equipped the S6 Avant with top-tier technology and comfort features. Depending on model year and trim, equipment may include:
- Twin touchscreen MMI Navigation Plus system
- Audi Virtual Cockpit digital display
- Bang & Olufsen premium sound system
- Apple CarPlay and Android Auto
- Heated and ventilated sports seats with memory function
- LED or Matrix LED headlights with dynamic indicators
- Adaptive cruise control, head-up display and night vision assist (on higher trims)
Everything inside the S6 Avant is designed to keep you connected, relaxed and in control at all times.
Trim levels and model options
The Audi S6 Avant is available in a selection of high-spec trims:
- S6 Avant — Comes well equipped with sports seats, LED lights, navigation and quattro as standard
- Black Edition — Adds dark styling accents, privacy glass, gloss black grille and 20 inch alloys
- Vorsprung — Top-tier trim with panoramic sunroof, full assist package, air suspension and upgraded sound system
- TDI (2019 onward) — Focused on high torque and long-distance comfort
- Older V8 or V6 petrol models — For drivers prioritising raw performance and petrol power
Each version offers an excellent mix of space, luxury and sharp performance.
Why choose a used Audi S6 Avant for sale on finance?
A used Audi S6 Avant for sale on finance is a brilliant choice for those who want the practicality of a large estate with the performance of a sports saloon. It suits business professionals, families and driving enthusiasts who appreciate refinement, space and power.
Compared to rivals like the BMW 540i xDrive Touring and Mercedes-AMG E 53 Estate, the S6 Avant offers quattro confidence, subtle styling and outstanding build quality.
With flexible finance options, a 90-day warranty and Carsa’s hassle-free Reserve and Collect service, getting behind the wheel of a high-performance estate is easier than ever.
Why buy from Carsa?
Flexible finance
from 8.9% APR
Get a personalised PCP or HP quote with rates from just 8.9% APR (Representative 10.9% APR).No impact on your credit score, see what you’re eligible for in minutes.


Free 90 day warranty
Drive away with added peace of mind. Every Carsa car comes with a 90-day warranty as standard, covering key mechanical and electrical components, so you’re protected from the start.
Checked, verified, and prepared
Every Carsa car gets a full mechanical inspection, a detailed cosmetic prep, and an Auto Trader Provenance check, so you know it looks great, drives reliably, and has a clear history before it hits the forecourt.


Reserve & Collect
Pay a £49 refundable fee and we’ll move any car to your chosen Carsa branch for a hassle-free test drive.

Save £700 on average
Our prices sit £700 below Auto Trader market valuations, on average, so you get instant, haggle-free savings.
We keep things simple and transparent, with fair pricing checked daily to make sure you’re always getting a great deal.
Transparent
Part-Exchange
Get an up-front, data-backed valuation that’s locked in for seven days—no guesswork, no surprises.
We use trusted market data to give you a fair offer right away, so you can plan your next move with confidence.
Can I afford a new car?
Exploring car finance? Our free eligibility checker gives you a personalised result in minutes with zero impact on your credit score and no strings attached. Finance from 8.9% APR. Representative APR 10.9%.

Get an instant
part exchange quote
Get a no-obligation part exchange valuation based on real-time market data. No fees, no fuss, and available nationwide.
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Car care
Our car care range keeps your vehicle protected, polished, and ready for anything, from extended warranties to smart fixes and everyday essentials.

carsaCover
Keeps you covered where it counts, with extended warranties and insurance for everyday bumps, scuffs, and scrapes. From mechanical protection to cosmetic and wheel care, it’s smart cover for real-world driving.

carsaCover EV
Keeps your electric vehicle covered where it counts, with extended warranties and protection for everyday bumps, scuffs, and scrapes. From key electric components to cosmetic and wheel care, it’s smart cover for real-world electric driving.

carsaProtect
Keep that showroom shine with our premium protection using advanced nanotech to guard paint, fabric, and leather. It resists stains, sun damage, and wear, all backed by a lifetime transferable guarantee. Looks great, lasts longer.
FAQs
No. Carsa does not sell Category write-off vehicles. Every car we sell goes through an official Auto Trader Provenance Check, which confirms there's no outstanding finance, theft or write-off history, and verifies the mileage is accurate.
The V5C logbook is sent to you directly by the DVLA after we register the car in your name. You'll usually receive it within 4 weeks.
You don't need the V5C to drive or tax your car in the meantime. If it's been more than 4 weeks and you haven't received it, contact the DVLA directly.
If you can't make your appointment, please let us know as soon as possible so we can reschedule or cancel it for you.
If you don't turn up, your reservation fee won't be refunded. The fee is only refunded when you attend your appointment.
To change or cancel your appointment, please get in touch via our contact page.
When a car shows as 'in preparation', it means it's still going through our checks and reconditioning process. During this time, the car can't be reserved or booked for a test drive.
We would recommend leaving an enquiry on the car's page. This will ensure you are notified when the vehicle is ready.
Cars come with a manufacturer warranty when new, usually lasting a set number of years or miles. How much cover is left will depend on the car’s age, mileage and the manufacturer’s terms, so we can’t guarantee this for every vehicle. The best way to confirm the exact cover is to check directly with the manufacturer.
If you’d like extra cover, we have warranty products available at the time of purchase.
A lot of our vehicles do come with two keys, but we can only guarantee that each car has at least one. If the car has two keys, we’ll provide both.Because keys can occasionally be misplaced or damaged during transport or preparation, we can only confirm the exact number at the point of test drive. To secure your car for a test drive, simply find it on our website and book with a refundable deposit.
All electric cars use manufacturer-made batteries that are designed to last many years. Modern electric car batteries are carefully managed with cooling systems and safety margins, so they usually last for the lifetime of the car. We don’t provide battery health reports ourselves, so for the most up-to-date details on battery health or warranty cover, please check directly with the manufacturer.
You’ll need to bring your driving licence. If you’re part exchanging, please also bring your V5, service documents, and spare key. If you’re part exchanging and have a private plate, please refer to this FAQ about part exchanging with a private plate
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