2021 Mazda Mazda3 2.0 e-SKYACTIV-G MHEV Sport LUX

Overview

• Make: Mazda
• Model: Mazda3
• Trim: Sport LUX
• Version: 2.0 e SKYACTIV-G Mhev Sport LUX Manual FWD Euro 6 (s/s) 5dr (120 bhp)
• Year: 2021
• Mileage: 20,004 miles
• Fuel: Petrol, mild hybrid
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 120 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 20,004 miles, this 2021 Mazda Mazda3 Sport Lux has covered about 9,600 fewer miles than other 2021 Mazda Mazda3 cars. Priced at £14,790, it is advertised £460 below the AskCar estimate of £15,250. To work out the AskCar estimate, we analyse UK dealer adverts for 1,226 Mazda Mazda3 cars across different ages and specifications. The dealer may accept less. This car has been on sale for at least 78 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Romford Mazda, based in Romford. 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: £460 (3%) under the AskCar estimate of £15,250.

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 1,226 priced Mazda Mazda3 adverts across different ages and specifications, as of 2 November 2026.

A 2021 Mazda Mazda3 with the 2.0 petrol engine is typically advertised at £14,700: the median of the 50 for sale on AskCar, as of 2 November 2026.

Time on sale

The dealer may accept less. This 2021 Mazda Mazda3 has been on sale for at least 78 days. About 6 in 10 of 2021 Mazda Mazda3 cars are gone from sale within a month of being advertised: 69 of the 123 first advertised between 11 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 16 August 2026 at £14,790. 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 20 April 2027.

It has had 3 MOTs. The latest, on 20 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 19,069 miles, which matches the advertised 20,004 miles.

Advertised mileage is about 9,600 miles lower than the median mileage of a 2021 Mazda Mazda3 on AskCar.

Similar cars

15 other 2021 Mazda Mazda3 Sport LUX 2.0 petrol manual hatchbacks are for sale at UK dealers, from £9,699 to £16,000, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Mazda Mazda3 Sport LUX, 2.0 petrol hatchback, white. Mileage: 21,881 miles. Price: £14,620, £170 less than this car. Dealer: Big Motoring World Leeds in Leeds. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2021-2548a8799ff0
• 2021 Mazda Mazda3 Sport LUX, 2.0 petrol hatchback, blue. Mileage: 17,889 miles. Price: £16,000, £1,210 more than this car. Dealer: Carlingo in Harrogate. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2021-31cd1ba1f2eb
• 2021 Mazda Mazda3 Sport LUX, 2.0 petrol hatchback, red. Mileage: 22,472 miles. Price: £15,698, £908 more than this car. Dealer: Arnold Clark Mazda Kirkcaldy in Kirkcaldy. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2021-b54049e596ca

• The nearest: 2021 Mazda Mazda3 Sport LUX, 2.0 petrol hatchback, blue, 50 miles from this car. Mileage: 24,142 miles. Price: £15,226, £436 more than this car. Dealer: Vindis Group Auto Now Bury St Edmunds in Bury St Edmunds. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2021-056c8565ec1a