BMW X6 XDRIVE40I M Sport Auto (2021)

Estimated running costs and MOT pass rates from 99 MOT tests in 2024.

Annual Cost

£2,563

£214/month

MOT Pass Rate

89%

Good

Road Tax

£200

Standard rate/year

Est. Insurance

Grp 30-42

2998cc Petrol

Solid Option

89% pass rate, £2,563/year to run. 7 points above average.

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Petrol2998cc5 years old99 tests29k miles avg

Annual Running Costs

Fuel (Petrol, 2998cc)

~30 mpg

£1,958

Road Tax

Standard rate (from April 2017)

£200

MOT Test

£55

Predicted Repairs

£350

Total per year£2,563

Per month£214/mo

Per week£49/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. Cars registered from April 2017 pay the £200 standard rate, plus £440 a year for five years (from the second year) if they cost over £40,000 new (over £50,000 for electric cars).

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 X6 XDRIVE40I M Sport Autos from 2021 ended in a pass in 2024, when they were about 3 years old. That's based on 99 tests across the UK, retests included. The average mileage recorded at those tests was 29,237 miles.

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How Does It Compare?

Rank among 2021 models2728th of 3,336(bottom 19%)

Rank among BMW models855th of 1,548(bottom half)

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

vs 2021 models average-3%(92% avg)

vs BMW average+1%(88% avg)

Mileage Analysis

29,237

Average miles

22,200

Expected for age

The average 2021 BMW X6 XDRIVE40I M Sport Auto had 29,237 miles on the clock at its 2024 MOT, which is above the expected 22,200 miles for a 3-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.

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Best Year to Buy?

Of the years with at least 100 tests, the 2020 model has the highest MOT pass rate at 95%, while the 2019 model has the lowest at 84%. The 2021 scores 89%. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

BMW X6 XDRIVE40I M Sport Auto by Year

Year	Pass Rate	Tests	Avg Mileage
2021	89%	99	29,237 mi
2020	95%	655	33,471 mi
2019	84%	134	33,933 mi

Similar Cars to Consider

BMW 5 Series

2019 · 2998cc Petrol

£2,413/year

92%

+3%

BMW X3

2019 · 2998cc Petrol

£2,413/year

92%

+3%

Mercedes GLC

2019 · 2996cc Petrol

£2,413/year

93%

+4%

BMW X5

2019 · 2998cc Petrol

£2,413/year

92%

+3%

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About the 2021 BMW X6 XDRIVE40I M Sport Auto

The 2021 BMW X6 XDRIVE40I M Sport Auto is a premium performance car. Our records list a 2998cc petrol engine, though engines vary between versions. 99 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It sits in the bottom 19% of 2021 models for MOT pass rate.

With an average of 29,237 miles recorded at its 2024 MOT tests, BMW X6 XDRIVE40I M Sport Auto owners cover more miles than the average driver.

2021 BMW X6 XDRIVE40I M Sport Auto Fuel Costs

The 2998cc 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 2021 BMW X6 XDRIVE40I M Sport Auto?

Total estimated annual running cost is £2,563 (£214/month), broken down as £1,958 fuel, £200 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.

Buying a Used 2021 BMW X6 XDRIVE40I M Sport Auto

At 5 years old, the BMW X6 XDRIVE40I M Sport Auto offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2020 model has the highest pass rate at 95%. Note: with only 99 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.

Oil Consumption

Low risk

Larger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.

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 2021 BMW X6 XDRIVE40I M Sport Auto 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 X6 XDRIVE40I M Sport Auto(2021)	89%	£1,958	£200	Grp 30-42	£2,563
BMW 5 Series(2019)	92%	£1,958	£200	Grp 30-42	£2,413-£150
BMW X3(2019)	92%	£1,958	£200	Grp 30-42	£2,413-£150
Mercedes GLC(2019)	93%	£1,958	£200	Grp 30-42	£2,413-£150
BMW X5(2019)	92%	£1,958	£200	Grp 30-42	£2,413-£150

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 2021 BMW X6 XDRIVE40I M Sport Auto

Is the 2021 BMW X6 XDRIVE40I M Sport Auto reliable?

Good reliability. Occasional issues but generally solid. 89% of MOT tests on 2021 BMW X6 XDRIVE40I M Sport Autos ended in a pass, from 99 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 2021 BMW X6 XDRIVE40I M Sport Auto cost to run?

Our estimate is £2,563 a year (£214 a month): £1,958 fuel, £200 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 2021 BMW X6 XDRIVE40I M Sport Auto?

89% of 99 MOT tests on the 2021 BMW X6 XDRIVE40I M Sport Auto ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 2728th of 3,336 models first registered in 2021 (bottom 19%).

Which year BMW X6 XDRIVE40I M Sport Auto has the best MOT pass rate?

Of the years with at least 100 tests, the 2020 BMW X6 XDRIVE40I M Sport Auto has the highest MOT pass rate at 95% and the 2019 the lowest at 84%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2021 BMW X6 XDRIVE40I M Sport Auto?

The average mileage recorded at MOT tests on the 2021 BMW X6 XDRIVE40I M Sport Auto is 29,237 miles, which is above the expected 22,200 miles for a 3-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.