What used BMW 6 Series coupe will I get for my budget?
If high miles don't bother you, early examples of the BMW 6 Series can be found for £10,000. If you spend a bit more, you will find some really good cars with less than 50,000 miles for around £15,000, topping out at £35,000 for one of the last examples from 2018.
A 6 Series with a petrol engine is a rare beast, so be prepared to spend more if you want one. Budget around £16,000 for a 640i and between £20,000 and £25,000 for a 650i.
The M6 is in another league, both in terms of acceleration and cost. Put aside at least £26,000 for one.
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How much does it cost to run a BMW 6 Series coupe?
The 640d will cost you the least to run and the savings are noticeable over a petrol 640i. The 640d’s official average of 52.3mpg gives it the edge over the 640i's 37.2mpg.
The 650i is a little bit more costly with an average of 32.1mpg. The M6, meanwhile, will cost you a small fortune to run with an average of 28.5mpg.
Avoid the M6 if you dislike forking out for road tax; it has the highest emissions of the lineup at 231g/km. The 650i is only marginally better, with 206g/km. The 640i is far cleaner-breathing, with emissions of 179g/km.
None of the petrol models can match the mere 145g/km of the 640d diesel; this figure is more in keeping with a small petrol car than it is a 155mph grand tourer.
Road tax for all models registered before 1 April 2017 will vary depending upon the emissions the engine produces (see paragraph above for more information) while examples registered after this date will make you liable for the flat-rate fee that's charged against cars that cost more than £40,000 when new. To find out more about the current road tax costs, click here.
If you’re looking at a 6 Series that’s less than five years old, it might still be covered under an original BMW servicing agreement. Failing that, you’re looking at about £150 at a BMW main dealer for a minor service or £450 for a major one. The servicing schedule itself is variable, but reckon on the car telling you it’s ready for attention at least every two years or 18,000 miles.
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