2018 Audi S1 2.0 TFSI Competition

Price: £20,995. Fair price: £1,225 (6%) over the AskCar estimate of £19,770, our expected asking price for this car from its model, age, mileage and specification, drawing on 46 priced Audi S1 adverts on AskCar as of 5 November 2026.

AskCar lists 49 used Audi S1 from 45 UK dealerships, as of 5 November 2026.

Overview

  • Make: Audi
  • Model: S1
  • Trim: Competition
  • Version: 2.0 TFSI Competition Manual 4WD Euro 6 (s/s) 3dr (228 bhp)
  • Year: 2018
  • Mileage: 22,550 miles
  • Fuel: Petrol
  • Body: Hatchback, 3 doors, 4 seats
  • Engine: 2.0 litres, 228 bhp
  • Gearbox: Manual
  • Drive: Four-wheel drive
  • CO2: 166 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi S1 Competition has covered 22,550 miles. Priced at £20,995, it is advertised £1,225 above the AskCar estimate of £19,770. The AskCar estimate uses UK dealer asking prices, including 46 Audi S1 adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 33 days. You can find this car at Southern Prestige Cars in Crawley. 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: £1,225 (6%) over the AskCar estimate of £19,770.

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 46 priced Audi S1 adverts across different ages and specifications, as of 5 November 2026.

Time on sale

This 2018 Audi S1 has been on sale for at least 33 days.

Price history

AskCar first saw this advert on 3 October 2026 at £20,995. Its asking price has not changed.

Similar cars

4 other 2018 Audi S1 Competition 2.0 petrol manual hatchbacks are for sale at UK dealers, from £15,950 to £17,999, as of 5 November 2026.

The 3 closest to this car in mileage:

  • 2018 Audi S1 Competition, 2.0 petrol hatchback, white. Mileage: 52,479 miles. Price: £15,990, £5,005 less than this car. Dealer: Bella Cars in Huddersfield. AskCar page: https://askcar.co.uk/car/audi-s1-2018-5096f89e1505
  • 2018 Audi S1 Competition, 2.0 petrol hatchback, blue. Mileage: 55,194 miles. Price: £17,999, £2,996 less than this car. Dealer: Sansoms Specialist Cars in Pegswood. AskCar page: https://askcar.co.uk/car/audi-s1-2018-248fd5c06bdd
  • 2018 Audi S1 Competition, 2.0 petrol hatchback, blue. Mileage: 56,000 miles. Price: £16,295, £4,700 less than this car. Dealer: MP Auto Group in Shrewsbury. AskCar page: https://askcar.co.uk/car/audi-s1-2018-b004bc6ac20a
  • The nearest: 2018 Audi S1 Competition, 2.0 petrol hatchback, red, 147 miles from this car. Mileage: 60,868 miles. Price: £15,950, £5,045 less than this car. Dealer: Parkway Motor Group in Edwinstowe. AskCar page: https://askcar.co.uk/car/audi-s1-2018-2f8cdb2c804a

Browse all Audi S1 cars for sale · 2018 Audi S1 price guide

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Photos

54 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.