2020 BMW 8 Series

3.0 840i Steptronic RWD Euro 6 (s/s) 2dr (335 bhp)

£20,990

Fair price: within 8% of the typical £21,243 for this model, age and mileage, drawing on 180 adverts of this make and model.

Overview

Make
BMW
Model
8 Series
Version
3.0 840i Steptronic RWD Euro 6 (s/s) 2dr (335 bhp)
Mileage
98,000 miles
Year
2020
Fuel type
Petrol
Body type
Coupe
Engine
3.0 L
Gearbox
Automatic
Power
335 bhp
Seats
4
CO2
164 g/km
Colour
Black
Doors
2
Driven wheels
Rear Wheel Drive
Gearbox version
Steptronic
Engine badge
840i
Emissions standard
Euro 6

About this car

The advertised mileage for this 2020 BMW 8 Series is 98,000 miles. At £20,990, it is advertised £253 below our estimated market asking price of £21,243. Our estimate draws on 180 BMW 8 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 70 days ago, and its asking price has since fallen by £4,000. The last MOT shows 99,433 miles, more than the advert. This is worth checking with the dealer. Its recorded MOT is valid until 31 August 2027. You can find this car at Gems Motors in Canterbury.

Stock data from 21 October 2026.

How we estimate prices and check cars

Price history

First seen on 13 August 2026, 70 days ago. Advert duration calculated on 22 October 2026. Net asking-price reduction: £4,000 from the first recorded £24,990. 3 price reductions recorded, the latest observed on 12 October 2026.

Recorded asking prices
Date observedAsking price
13 August 2026£24,990
13 September 2026£22,990
26 September 2026£21,990
12 October 2026£20,990
21 October 2026£20,990

Price and mileage comparison

Estimated market asking price: £21,243. The asking price is £253 below 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 180 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 57,000 miles higher than typical for a 2020 BMW 8 Series.

Mileage concern: the advertised mileage is below the last MOT reading; ask the dealer to explain.

MOT

MOT valid until 31 August 2027. 99,433 miles at the last test.

19 other cars with the same year, trim, gearbox and fuel are for sale from £23,990 to £51,995.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£23,99086,384 miles
£25,99560,860 miles
£26,99073,500 miles
£27,65448,150 miles
£28,50041,000 miles

These cars have covered 19,800–86,384 miles, compared with 98,000 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 8 Series cars for sale · 2020 BMW 8 Series price guide

Dealer

Gems Motors, Canterbury. Across the dealer network: 9 cars for sale.

Dealer postcode: CT2 7PX.

Vehicle photos