2004 BMW 6 Series 4.4 645Ci V8
Price: £8,990. Fair price: £71 (under 1%) under the AskCar estimate of £9,061, our expected asking price for this car from its model, age, mileage and specification, drawing on 159 priced BMW 6 Series adverts on AskCar as of 4 November 2026.
AskCar lists 179 used BMW 6 Series from 153 UK dealerships, as of 4 November 2026.
Overview
- Make: BMW
- Model: 6 Series
- Version: 4.4 645Ci V8 Auto RWD Euro 3 2dr (333 bhp)
- Year: 2004
- Mileage: 50,000 miles
- Fuel: Petrol
- Body: Convertible, 2 doors, 4 seats
- Engine: 4.4 litres, 333 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Silver
- CO2: 279 g/km
- Emissions standard: Euro 3
About this car
This 2004 BMW 6 Series has covered 50,000 miles. The dealer is asking £8,990, which is £71 below the AskCar estimate of £9,061. To work out the AskCar estimate, we analyse UK dealer adverts for 159 BMW 6 Series cars across different ages and specifications. We have tracked this advert for 160 days. The advertised mileage is lower than the latest MOT reading of 50,879 miles. Ask the dealer to explain. Our latest MOT record expired on 11 October 2023. Check the current position with the dealer. It is advertised by Priory Cars in Bedford. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 4 November 2026.
Price
Fair price: £71 (under 1%) under the AskCar estimate of £9,061.
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 159 priced BMW 6 Series adverts across different ages and specifications, as of 4 November 2026.
Time on sale
This 2004 BMW 6 Series has been on sale for at least 160 days.
Price history
AskCar first saw this advert on 28 May 2026 at £8,990. 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 4 November 2026: the latest record we hold ran out on 11 October 2023; ask the dealer for the current MOT.
It has had 19 MOTs. The latest, on 12 October 2022, passed.
There were no advisories at the latest test.
Mileage at that test: 50,879 miles. The advert says 50,000 miles, fewer than the MOT record, so ask the dealer which is right.
Browse all BMW 6 Series cars for sale · 2004 BMW 6 Series price guide
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Photos
16 photos of this car are on its AskCar page.
As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.