2020 BMW 8 Series Gran Coupe 3.0 840i

Overview

• Make: BMW
• Model: 8 Series Gran Coupe
• Version: 3.0 840i Steptronic RWD Euro 6 (s/s) 4dr (335 bhp)
• Year: 2020
• Mileage: 57,400 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 196 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 8 Series Gran Coupe has covered 57,400 miles, around 3,700 more miles than is typical for its age. The dealer is asking £25,990, which is £3,010 below the AskCar estimate of £29,000. To work out the AskCar estimate, we analyse UK dealer adverts for 120 BMW 8 Series Gran Coupe cars across different ages and specifications. This car was first seen in our listings data 47 days ago. Our latest MOT record expired on 5 November 2026. Check the current position with the dealer. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at S James Prestige in Stamford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Good value: £3,010 (10%) under the AskCar estimate of £29,000.

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 120 priced BMW 8 Series Gran Coupe adverts across different ages and specifications, as of 9 November 2026.

A 2020 BMW 8 Series Gran Coupe with the 3.0 petrol engine is typically advertised at £27,600: the median of the 24 for sale on AskCar, as of 9 November 2026.

Time on sale

This 2020 BMW 8 Series Gran Coupe has been on sale for at least 47 days.

Price history

AskCar first saw this advert on 23 September 2026 at £25,990. 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 9 November 2026: the latest record we hold ran out on 5 November 2026; ask the dealer for the current MOT.

It has had 4 MOTs. The latest, on 6 November 2025, passed.

Advisories at the latest test: tyre worn close to legal limit/worn on edge both rear tyres 275/30x20; brake disc worn, but not excessively all four.

Mileage at that test: 51,806 miles, which matches the advertised 57,400 miles.

Advertised mileage is about 3,700 miles higher than the median mileage of a 2020 BMW 8 Series Gran Coupe on AskCar.