2018 Audi RS6 Avant 4.0 TFSI V8 Performance

Price: £55,000. Fair price: £1,868 (3%) under the AskCar estimate of £56,868, our expected asking price for this car from its model, age, mileage and specification, drawing on 274 priced Audi RS6 Avant adverts on AskCar as of 5 November 2026.

AskCar lists 281 used Audi RS6 Avant from 208 UK dealerships, as of 5 November 2026.

Overview

  • Make: Audi
  • Model: RS6 Avant
  • Trim: Performance
  • Version: 4.0 TFSI V8 Performance Tiptronic 4WD Euro 6 (s/s) 5dr (597 bhp)
  • Year: 2018
  • Mileage: 25,000 miles
  • Fuel: Petrol
  • Body: Estate, 5 doors, 5 seats
  • Engine: 4.0 litres, 597 bhp
  • Gearbox: Automatic (Tiptronic)
  • Drive: Four-wheel drive
  • Colour: Black
  • CO2: 223 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2018 Audi RS6 Avant Performance is 25,000 miles. Priced at £55,000, it is advertised £1,868 below the AskCar estimate of £56,868. The AskCar estimate draws on 274 Audi RS6 Avant adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 58 days ago. Ask the dealer why the advert shows fewer miles than the 51,929 recorded at the latest MOT. The recorded MOT expired on 29 September 2026, so ask the dealer whether it has been renewed. You can find this car at Kobra Imports in Birmingham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,868 (3%) under the AskCar estimate of £56,868.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 274 priced Audi RS6 Avant adverts across different ages and specifications, as of 5 November 2026.

Time on sale

This 2018 Audi RS6 Avant has been on sale for at least 58 days.

Price history

AskCar first saw this advert on 8 September 2026 at £55,000. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: the latest record we hold ran out on 29 September 2026; ask the dealer for the current MOT.

It has had 6 MOTs. The latest, on 30 September 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 51,929 miles. The advert says 25,000 miles, fewer than the MOT record, so ask the dealer which is right.

Similar cars

5 other 2018 Audi RS6 Avant Performance 4.0 petrol automatic estates are for sale at UK dealers, from £39,995 to £47,980, as of 5 November 2026.

The 3 closest to this car in mileage:

  • 2018 Audi RS6 Avant Performance, 4.0 petrol estate, white. Mileage: 48,000 miles. Price: £43,995, £11,005 less than this car. Dealer: Driven Motor Company in Glasgow. AskCar page: https://askcar.co.uk/car/audi-rs6-avant-2018-21d9d8246cae
  • 2018 Audi RS6 Avant Performance, 4.0 petrol estate, grey. Mileage: 57,000 miles. Price: £47,980, £7,020 less than this car. Dealer: Banbury Motors in Banbury. AskCar page: https://askcar.co.uk/car/audi-rs6-avant-2018-d934fd8e080a
  • 2018 Audi RS6 Avant Performance, 4.0 petrol estate, grey. Mileage: 64,000 miles. Price: £39,995, £15,005 less than this car. Dealer: Panacea Motors in Bury. AskCar page: https://askcar.co.uk/car/audi-rs6-avant-2018-e4f9c3c28782

Browse all Audi RS6 Avant cars for sale · 2018 Audi RS6 Avant price guide

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Photos

92 photos of this car are on its AskCar page.

As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.