2021 Audi A3 1.4 TFSIe S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.4 13kWh TFSIe 40 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (201 bhp)
• Year: 2021
• Mileage: 47,612 miles
• Fuel: Plug-in hybrid (petrol)
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.4 litres, 201 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 29 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A3 S Line is advertised with 47,612 miles, approximately 4,000 above the typical mileage for its age. Its asking price of £15,198 is £1,688 below the AskCar estimate of £16,886. The AskCar estimate uses 6,542 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert for 8 days. Its advertised mileage matches the government's MOT record. It is for sale at BTS Cars in Derby. 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

Good value: £1,688 (10%) under the AskCar estimate of £16,886.

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

This 2021 Audi A3 has been on sale for at least 8 days.

Price history

AskCar first saw this advert on 25 October 2026 at £15,198. 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: valid until 29 April 2027.

It has had 4 MOTs. The latest, on 16 April 2026, passed.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge at 2.7mm and wearing inner edge; offside front tyre worn close to legal limit/worn on edge at 2.9mm wearing inner edge.

Mileage at that test: 41,581 miles, which matches the advertised 47,612 miles.

Advertised mileage is about 4,000 miles higher than the median mileage of a 2021 Audi A3 on AskCar.

Similar cars

41 other 2021 Audi A3 S Line 1.4 plug-in hybrid automatic hatchbacks are for sale at UK dealers, from £11,600 to £20,990, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, black. Mileage: 47,365 miles. Price: £16,150, £952 more than this car. Dealer: John Banks Hyundai in Cambridge. AskCar page: https://askcar.co.uk/car/audi-a3-2021-a24c857fb777
• 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, white. Mileage: 48,762 miles. Price: £16,099, £901 more than this car. Dealer: Motorpoint Burnley in Burnley. AskCar page: https://askcar.co.uk/car/audi-a3-2021-13560cc575c4
• 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, grey. Mileage: 49,167 miles. Price: £15,920, £722 more than this car. Dealer: Hippo Motor Group Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/audi-a3-2021-ff9dbf454fa3

• The nearest: 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, grey, 20 miles from this car. Mileage: 24,193 miles. Price: £18,451, £3,253 more than this car. Dealer: Vertu Vauxhall Chesterfield in Chesterfield. AskCar page: https://askcar.co.uk/car/audi-a3-2021-a4dd278949ff