BMW M6 (2014)
Running costs, reliability data, and common problems from 800 real MOT tests.
Annual Cost
£2,607
£217/month
MOT Pass Rate
95%
Excellent
Road Tax
£760
Based on CC/year
Insurance
Grp 35-50
4399cc Petrol
Great Choice
95% pass rate, £2607/year to run. 13 points above average.
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Annual Running Costs
~30 mpg
Based on 4399cc
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Excellent reliability. Very few MOT failures. That's 13 points above the national average of 82%. It also outperforms the BMW brand average of 88%.
At 12 years old, 95% of BMW M6s from 2014 passed their MOT first time in 2026. That's based on 800 tests across the UK. The average mileage at this age is 54,790 miles.
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Mileage Analysis
54,790
Average miles
88,800
Expected for age
The average 2014 BMW M6 has 54,790 miles on the clock, which is below the expected 88,800 miles for a 12-year-old car. This suggests lighter use than average, which generally means less wear on major components.
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BMW M6 by Year
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About the 2014 BMW M6
The 2014 BMW M6 is a premium performance with a 4399cc petrol engine. 800 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. It ranks in the top 10% of all 2014 cars for reliability.
With an average of 54,790 miles at 12 years old, BMW M6 owners tend to use this car less than the typical driver.
2014 BMW M6 Fuel Costs
The 4399cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2014 BMW M6?
Total estimated annual running cost is £2,607 (£217/month), broken down as £1592 fuel, £760 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 95% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
BMW M6 Reliability Trend
The BMW M6 has maintained consistent MOT pass rates across model years, varying by only 2 percentage points.
Buying a Used 2014 BMW M6
At 12 years old, the BMW M6 is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age.
Common Issues to Watch For
Based on the 2014 BMW M6's fuel type, age, and engine size, these are the most likely problem areas to check.
Timing Chain / Belt
Watch outAt 12 years old, check whether the timing belt has been replaced (typically due every 5-7 years or 60,000-100,000 miles). A snapped belt can destroy the engine.
Oil Consumption
Medium riskLarger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.
Rust and Corrosion
Watch outAt 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.
Suspension Bushings
Watch outRubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2014 BMW M6 stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| BMW M6(2014) | 95% | £1592 | £760 | Grp 35-50 | £2607 |
| MERCEDES C(2016) | 88% | £1592 | £250 | Grp 35-50 | £2247-£360 |
| AUDI A6(2016) | 89% | £1592 | £250 | Grp 35-50 | £2247-£360 |
| PORSCHE 911(2016) | 97% | £1592 | £250 | Grp 35-50 | £2097-£510 |
| BENTLEY CONTINENTAL(2014) | 97% | £1592 | £250 | Grp 35-50 | £2097-£510 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
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