BMW M6 (2018)
Running costs, common problems, and reliability data based on 161 real MOT tests in 2024.
MOT Pass Rate
89%
Total Tests (2024)
161
Avg Mileage
41,044 mi
Est. Annual Cost
£2,187
Is the 2018 BMW M6 reliable?
Good reliability. Occasional issues but generally solid. That's 7 points above the national average of 82%.
At 6 years old, 89% of BMW M6s from 2018 passed their MOT first time in 2024. That's based on 161 tests across the UK. The average mileage at this age is 41,044 miles.
How does the 2018 BMW M6 compare?
Mileage Analysis
The average 2018 BMW M6 has 41,044 miles on the clock, which is in line with the expected 44,400 miles for a 6-year-old car, suggesting normal everyday use.
Best year to buy a BMW M6?
The most reliable year is the 2014 model with a 95% MOT pass rate, while the 2005 model has the lowest at 87%. The 2018 sits between the two at 89%.
How much does a 2018 BMW M6 cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
BMW M6 by Year
Checking a specific BMW M6?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2018 BMW M6
The 2018 BMW M6 is a premium performance with a 4395cc petrol engine. 161 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. Among all cars from 2018, the average MOT pass rate is 89%, and this model falls short of that benchmark.
With an average of 41,044 miles at 6 years old, BMW M6 owners drive about as much as the UK average.
2018 BMW M6 Fuel Costs
The 4395cc 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 2018 BMW M6?
Total estimated annual running cost is £2,187 (£182/month), broken down as £1592 fuel, £190 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 2018 BMW M6
At 6 years old, the BMW M6 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 2014 model has the highest pass rate at 95%.
Alternatives to the 2018 BMW M6
If reliability is your priority, there are 2 similar cars with a higher MOT pass rate. Here are comparable petrol cars with similar engines:
- MERCEDES C (2016) 88% pass rate (-1%) from 80,181 tests
- AUDI A6 (2016) 89% pass rate (same) from 26,437 tests
- PORSCHE CAYENNE (2019) 95% pass rate (+6%) from 9,063 tests
- PORSCHE 911 (2018) 96% pass rate (+7%) from 7,623 tests