2021 Audi A3 1.4 TFSIe S Line Competition

Overview

• Make: Audi
• Model: A3
• Trim: S Line Competition
• Version: 1.4 13kWh TFSIe 45 S Line Competition S tronic FWD Euro 6 (s/s) 5dr Sportback (242 bhp)
• Year: 2021
• Mileage: 75,605 miles
• Fuel: Plug-in hybrid (petrol)
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.4 litres, 242 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 30 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A3 S Line Competition is advertised with 75,605 miles, approximately 32,000 above the typical mileage for its age. The AskCar estimate for this car is £15,345. It is priced at £15,570, which is £225 above that estimate. The AskCar estimate uses 6,542 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 2 days ago. The latest recorded MOT expiry date is 26 July 2026, which has passed. Confirm its status with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Evans Halshaw BYD Rotherham, based in Rotherham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £225 (1%) over the AskCar estimate of £15,345.

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 6,542 priced Audi A3 adverts across different ages and specifications, as of 2 November 2026.

A 2021 Audi A3 with the 1.4 plug-in hybrid engine is typically advertised at £15,900: the median of the 77 for sale on AskCar, as of 2 November 2026.

Time on sale

AskCar first saw this 2021 Audi A3 advertised 2 days ago. About 6 in 10 of 2021 Audi A3 cars are gone from sale within a month of being advertised: 403 of the 709 first advertised between 7 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 31 October 2026 at £15,570. 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 2 November 2026: the latest record we hold ran out on 26 July 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 17 July 2025, passed.

Advisories at the latest test: rear brake disc worn, pitted or scored, but not seriously weakened.

Mileage at that test: 62,540 miles, which matches the advertised 75,605 miles.

Advertised mileage is about 32,000 miles higher than the median mileage of a 2021 Audi A3 on AskCar.

Similar cars

6 other 2021 Audi A3 S Line Competition 1.4 plug-in hybrid automatic hatchbacks are for sale at UK dealers, from £13,000 to £21,295, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A3 S Line Competition, 1.4 plug-in hybrid hatchback, black. Mileage: 72,032 miles. Price: £15,991, £421 more than this car. Dealer: Cardiff Trade Sales in Cardiff. AskCar page: https://askcar.co.uk/car/audi-a3-2021-421b4f519b80
• 2021 Audi A3 S Line Competition, 1.4 plug-in hybrid hatchback, white. Mileage: 48,768 miles. Price: £18,498, £2,928 more than this car. Dealer: Arnold Clark Benton Chery in Benton. AskCar page: https://askcar.co.uk/car/audi-a3-2021-eb2bebedc011
• 2021 Audi A3 S Line Competition, 1.4 plug-in hybrid hatchback, black. Mileage: 113,000 miles. Price: £13,000, £2,570 less than this car. Dealer: Car Solutions Bedfordshire in Luton. AskCar page: https://askcar.co.uk/car/audi-a3-2021-e493583a0659

• The nearest: 2021 Audi A3 S Line Competition, 1.4 plug-in hybrid hatchback, blue, 44 miles from this car. Mileage: 10,000 miles. Price: £18,750, £3,180 more than this car. Dealer: Kneeton Hill in Nottingham. AskCar page: https://askcar.co.uk/car/audi-a3-2021-776d9b0ab169