2020 BMW 3 Series 2.0 320i M Sport

Version: 2.0 320i M Sport Auto RWD Euro 6 (s/s) 4dr (181 bhp)

Price: £20,370. Fair price: £1,170 (5%) under the AskCar estimate of £21,540, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,706 priced BMW 3 Series adverts on AskCar as of 30 October 2026.

AskCar lists 6,987 used BMW 3 Series from 2,629 UK dealerships, as of 30 October 2026.

Overview

Make
BMW
Model
3 Series
Trim
M Sport
Version
2.0 320i M Sport Auto RWD Euro 6 (s/s) 4dr (181 bhp)
Mileage
35,500 miles
Year
2020
Fuel type
Petrol
Body type
Saloon
Engine
2.0 L
Gearbox
Automatic
Power
181 bhp
Seats
5
CO2
146 g/km
Colour
Grey
Doors
4
Driven wheels
Rear Wheel Drive
Engine badge
320i
Emissions standard
Euro 6

About this car

This 2020 BMW 3 Series M Sport is advertised with 35,500 miles, approximately 23,400 below the typical mileage for its age. The dealer is asking £20,370, which is £1,170 below the AskCar estimate of £21,540. To work out the AskCar estimate, we analyse UK dealer adverts for 6,706 BMW 3 Series cars across different ages and specifications. We have tracked this advert today. Its MOT is recorded as valid until 27 September 2027. The advertised mileage is consistent with the latest MOT reading. You can find this car at Big Motoring World Enfield in Waltham Cross.

Stock data as of 30 October 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 30 October 2026.

Recorded asking prices
Date observedAsking price
30 October 2026£20,370

Price and mileage comparison

Fair price: £1,170 (5%) under the AskCar estimate of £21,540.

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 6,706 priced BMW 3 Series adverts across different ages and specifications, as of 30 October 2026.

Advertised mileage is about 23,400 miles lower than the median mileage of a 2020 BMW 3 Series on AskCar.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT: valid until 27 September 2027. 35,174 miles at the last test.

Other matching cars

114 other 2020 BMW 3 Series M Sport automatic petrol cars are for sale at UK dealers from £12,999 to £27,980, as of 30 October 2026.

The 5 cheapest:

The 114 matching cars have covered 12,377 to 126,000 miles, compared with 35,500 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.

Browse all BMW 3 Series cars for sale · 2020 BMW 3 Series price guide

More like this

Photos

1 photo of this car is on its AskCar page.

How to contact the dealer and its opening hours are on this AskCar page.

As of 30 October 2026, AskCar lists 580,490 cars and vans from 12,695 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.