2020 BMW 3 Series 2.0 320i M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 2.0 320i M Sport Auto RWD Euro 6 (s/s) 4dr (181 bhp)
• Year: 2020
• Mileage: 84,717 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 84,717 miles on the clock, this 2020 BMW 3 Series M Sport has done roughly 25,500 more miles than a typical 2020 BMW 3 Series. The AskCar estimate for this car is £15,222. It is priced at £16,050, which is £828 above that estimate. The AskCar estimate uses 6,864 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records today. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Car Planet Watford in Rickmansworth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

Fair price: £828 (5%) over the AskCar estimate of £15,222.

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 6,864 priced BMW 3 Series adverts across different ages and specifications, as of 10 November 2026.

A 2020 BMW 3 Series with the 2.0 petrol engine is typically advertised at £18,500: the median of the 458 for sale on AskCar, as of 10 November 2026.

Time on sale

AskCar first saw this 2020 BMW 3 Series advertised today. About half of 2020 BMW 3 Series cars are gone from sale within a month of being advertised: 353 of the 753 first advertised between 10 July 2026 and 7 October 2026.

Price history

AskCar first saw this advert on 10 November 2026 at £16,050. 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 10 November 2026: valid until 6 November 2027.

It has had 6 MOTs. The latest, on 6 November 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 84,685 miles, which matches the advertised 84,717 miles.

Advertised mileage is about 25,500 miles higher than the median mileage of a 2020 BMW 3 Series on AskCar.

Similar cars

99 other 2020 BMW 3 Series M Sport 2.0 petrol automatic saloons are for sale at UK dealers, from £12,999 to £25,895, as of 10 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 85,906 miles. Price: £17,500, £1,450 more than this car. Dealer: Sytner Leicester BMW in Leicester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-70a884a211da
• 2020 BMW 3 Series M Sport, 2.0 petrol saloon, blue. Mileage: 82,310 miles. Price: £15,595, £455 less than this car. Dealer: Switch Cars in Southall. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-3e4c5fb0a73e
• 2020 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 89,000 miles. Price: £15,500, £550 less than this car. Dealer: Car Valley in Redbridge. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-53f86774cfa3

• The nearest: 2020 BMW 3 Series M Sport, 2.0 petrol saloon, black, 6 miles from this car. Mileage: 70,000 miles. Price: £18,995, £2,945 more than this car. Dealer: Harentor Cars in St Albans. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-d9f0413a3298