2020 BMW 8 Series 3.0 840i
Price: £29,173. Fair price: £1,591 (5%) under the AskCar estimate of £30,764, our expected asking price for this car from its model, age, mileage and specification, drawing on 186 priced BMW 8 Series adverts on AskCar as of 5 November 2026.
AskCar lists 193 used BMW 8 Series from 162 UK dealerships, as of 5 November 2026.
Overview
- Make: BMW
- Model: 8 Series
- Version: 3.0 840i Steptronic RWD Euro 6 (s/s) 2dr (335 bhp)
- Year: 2020
- Mileage: 39,081 miles
- Fuel: Petrol
- Body: Coupe, 2 doors, 4 seats
- Engine: 3.0 litres, 335 bhp
- Gearbox: Automatic (Steptronic)
- Drive: Rear-wheel drive
- Colour: Blue
- CO2: 164 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2020 BMW 8 Series is advertised with 39,081 miles on the clock. The AskCar estimate for this car is £30,764. It is priced at £29,173, which is £1,591 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 186 BMW 8 Series cars across different ages and specifications. We first recorded this car for sale 1 day ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Carbase Weston-super-Mare, based in Weston-Super-Mare. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Fair price: £1,591 (5%) under the AskCar estimate of £30,764.
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 186 priced BMW 8 Series adverts across different ages and specifications, as of 5 November 2026.
A 2020 BMW 8 Series with the 3.0 petrol engine is typically advertised at £29,500: the median of the 38 for sale on AskCar, as of 5 November 2026.
Time on sale
AskCar first saw this 2020 BMW 8 Series advertised 1 day ago.
Price history
AskCar first saw this advert on 4 November 2026 at £29,173. 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 5 November 2026: valid until 16 January 2027.
It has had 5 MOTs. The latest, on 29 December 2025, passed.
There were no advisories at the latest test.
Mileage at that test: 34,992 miles, which matches the advertised 39,081 miles.
Advertised mileage is about 1,400 miles lower than the median mileage of a 2020 BMW 8 Series on AskCar.
Browse all BMW 8 Series cars for sale · 2020 BMW 8 Series price guide
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- Used BMW 8 Series for sale near Weston-super-Mare
Photos
12 photos of this car are on its AskCar page.
As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.