2021 BMW 4 Series

2.0 420i M Sport Auto RWD Euro 6 (s/s) 2dr (181 bhp)

£27,975

Fair price: within 8% of the typical £27,178 for this model, age and mileage, drawing on 1,763 adverts of this make and model.

Overview

Make
BMW
Model
4 Series
Trim
M SPORT
Version
2.0 420i M Sport Auto RWD Euro 6 (s/s) 2dr (181 bhp)
Mileage
18,000 miles
Year
2021
Fuel type
Petrol
Body type
Coupe
Engine
2.0 L
Gearbox
Automatic
Power
181 bhp
Seats
4
CO2
151 g/km
Colour
Blue
Doors
2
Driven wheels
Rear Wheel Drive
Engine badge
420i
Emissions standard
Euro 6

About this car

With 18,000 miles on the clock, this 2021 BMW 4 Series M Sport has done roughly 24,000 fewer miles than a typical 2021 BMW 4 Series. At £27,975, it is advertised £797 above our estimated market asking price of £27,178. Our estimate draws on 1,763 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 21 days ago. Its recorded MOT is valid until 8 May 2027, and its advertised mileage is consistent with the latest MOT reading. You can find this car at Cottrell Motor Co in Warrington.

Stock data from 20 October 2026.

How we estimate prices and check cars

Price history

First seen on 30 September 2026, 21 days ago. Advert duration calculated on 21 October 2026.

Recorded asking prices
Date observedAsking price
30 September 2026£27,975
2 October 2026£27,975
20 October 2026£27,975

Price and mileage comparison

Estimated market asking price: £27,178. The asking price is £797 above this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 1,763 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 24,000 miles lower than typical for a 2021 BMW 4 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 8 May 2027. 17,769 miles at the last test.

85 other cars with the same year, trim, gearbox and fuel are for sale from £16,995 to £41,000.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£16,99596,000 miles
£17,49056,431 miles
£18,99097,313 miles
£19,90077,199 miles
£20,75086,002 miles

These cars have covered 12,064–97,313 miles, compared with 18,000 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

Browse all BMW 4 Series cars for sale · 2021 BMW 4 Series price guide

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Dealer

Cottrell Motor Co, Warrington. Across the dealer network: 26 cars for sale.

Dealer postcode: WA2 7PA.

Dealer opening hours

Monday
09:00-19:00
Tuesday
09:00-19:00
Wednesday
09:00-19:00
Thursday
09:00-19:00
Friday
09:00-19:00
Saturday
09:00-17:00
Sunday
10:00-16:00

Vehicle photos