BMW M6 (2008)

Estimated running costs and MOT pass rates from 57 MOT tests in 2024.

Annual Cost

£3,153

£263/month

MOT Pass Rate

89%

Good

Road Tax

£790

Estimated/year

Est. Insurance

Grp 35-50

4999cc Petrol

Solid Option

89% pass rate, £3,153/year to run. 7 points above average.

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Petrol4999cc18 years old57 tests68k miles avg

Annual Running Costs

Fuel (Petrol, 4999cc)

~30 mpg

£1,958

Road Tax

Estimated CO2 band

£790

MOT Test

£55

Predicted Repairs

£350

Total per year£3,153

Per month£263/mo

Per week£61/wk

Estimates based on 7,400 miles/year (UK average), petrol at 174.57p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included.

Reliability Verdict

89% MOT pass rate(Good)

0%All-model avg: 82%100%

Good reliability. Occasional issues but generally solid. That's 7 points above the average of 82% across all models in our data.

89% of MOT tests on BMW M6s from 2008 ended in a pass in 2024, when they were about 16 years old. That's based on 57 tests across the UK, retests included. The average mileage recorded at those tests was 67,934 miles.

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How Does It Compare?

Rank among 2008 models67th of 566(top 12%)

Rank among BMW models869th of 1,548(bottom half)

vs average of all models+7%(82% avg)

vs 2008 models average+16%(73% avg)

vs BMW average+1%(88% avg)

Mileage Analysis

67,934

Average miles

118,400

Expected for age

The average 2008 BMW M6 had 67,934 miles on the clock at its 2024 MOT, which is below the expected 118,400 miles for a 16-year-old car. This suggests lighter use than average, which generally means less wear on major components.

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Best Year to Buy?

Of the years with at least 100 tests, the 2014 model has the highest MOT pass rate at 95%, while the 2005 model has the lowest at 87%. The 2008 scores 89%. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

BMW M6 by Year

Year	Pass Rate	Tests	Avg Mileage
2018	89%	161	41,044 mi
2017	94%	341	38,245 mi
2016	92%	555	48,815 mi
2015	92%	629	55,303 mi
2014	95%	800	54,790 mi
2013	91%	310	54,574 mi
2012	93%	106	54,436 mi
2009	92%	38	63,568 mi
2008	89%	57	67,934 mi
2007	93%	107	69,046 mi
2006	90%	230	77,159 mi
2005	87%	204	77,020 mi

Similar Cars to Consider

BMW X5

2010 · 4799cc Petrol

£3,153/year

86%

-3%

Audi A6

2009 · 4991cc Petrol

£3,153/year

81%

-8%

Mercedes ML

2006 · 4966cc Petrol

£3,153/year

80%

-9%

Porsche Cayenne

2006 · 4511cc Petrol

£3,153/year

86%

-3%

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About the 2008 BMW M6

The 2008 BMW M6 is a premium performance car. Our records list a 4999cc petrol engine, though engines vary between versions. 57 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It ranks in the top 12% of all 2008 models for MOT pass rate.

With an average of 67,934 miles recorded at its 2024 MOT tests, BMW M6 owners tend to use this car less than the typical driver.

2008 BMW M6 Fuel Costs

The 4999cc 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 £1,958 per year with petrol at 174.57p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year).

What does it cost to own a 2008 BMW M6?

Total estimated annual running cost is £3,153 (£263/month), broken down as £1,958 fuel, £790 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 89% pass rate. Keeping on top of servicing will help avoid surprises.

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 2008 BMW M6

At 18 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. If you're flexible on year, the 2014 model has the highest pass rate at 95%. Note: with only 57 tests in our data, these figures should be treated as indicative rather than definitive.

Common Issues to Watch For

These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.

Timing Chain / Belt

Watch out

At 18 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 risk

Larger 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 out

At 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 out

Rubber 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 risk

Always 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 2008 BMW M6 stacks up against similar cars for estimated annual running costs, insurance group, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Est. Ins. Group	Total/yr
BMW M6(2008)	89%	£1,958	£790	Grp 35-50	£3,153
BMW X5(2010)	86%	£1,958	£790	Grp 35-50	£3,153same
Audi A6(2009)	81%	£1,958	£790	Grp 35-50	£3,153same
Mercedes ML(2006)	80%	£1,958	£790	Grp 35-50	£3,153same
Porsche Cayenne(2006)	86%	£1,958	£790	Grp 35-50	£3,153same

Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 19 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.

Questions about the 2008 BMW M6

Is the 2008 BMW M6 reliable?

Good reliability. Occasional issues but generally solid. 89% of MOT tests on 2008 BMW M6s ended in a pass, from 57 tests (DVSA MOT data for tests in 2024, retests included). That's 7 points above the average of 82% across all models in the same data.

How much does a 2008 BMW M6 cost to run?

Our estimate is £3,153 a year (£263 a month): £1,958 fuel, £790 road tax, £55 MOT and £350 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2008 BMW M6?

89% of 57 MOT tests on the 2008 BMW M6 ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 67th of 566 models first registered in 2008 (top 12%).

Which year BMW M6 has the best MOT pass rate?

Of the years with at least 100 tests, the 2014 BMW M6 has the highest MOT pass rate at 95% and the 2005 the lowest at 87%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2008 BMW M6?

The average mileage recorded at MOT tests on the 2008 BMW M6 is 67,934 miles, which is below the expected 118,400 miles for a 16-year-old car. This suggests lighter use than average, which generally means less wear on major components.