BMW

BMW M8 Competition Auto (2021)

184 real MOT outcomes analysed • 95.8% first-time pass rate

2021 BMW M8 Competition Auto

CarHunch analysed 184 real MOT records for the 2021 BMW M8 Competition Auto. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Compare Models

The 2021 BMW M8 Competition is a genuinely reliable performer, with an 87.5% first-time pass rate that beats the UK average of 80%—and the 5.4% rate of dangerous defects is mercifully low for a car of this performance level. These M8s are arriving at test with modest mileage (median 22,520 miles for a three-year-old car), suggesting they're being treated as the treasured machines they are.

When failures do occur, they're rare (0.11 per vehicle), though advisories average 0.8 per car, which typically reflects the wear items you'd expect on a high-powered machine. If you're considering one, check the service history carefully and budget for preventative suspension and brake work—performance cars demand attention, but this data says the M8 won't surprise you with structural gremlins.

We have limited data for the 2021 BMW M8 Competition Auto — treat the figures below as indicative rather than definitive.

⚠️ Around 1 in 20 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.
First-time pass
95.8%
UK average ~80%
Better than average
Dangerous (ever)
5.4%
At least once in MOT history
Check this vehicle
Avg failures / car
0.11
Over 2.1 tests on record
Low
Typical mileage
23k
Middle half: 17k–33k
For context

These stats describe 184 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

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See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 184 BMW M8 Competition Auto cars.

UK

Before you buy a 2021 BMW M8 Competition Auto

Based on MOT data from 184 vehicles — here's what to check.

  • 📋 Check the full MOT history. 5.4% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
    Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
  • 🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection ClickMechanic
  • 📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History carVertical Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (97%) 179 95.7% 0.12

Mileage Distribution

Most 2021 BMW M8 Competition Auto vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

22,520
typical
17,069
low mileage
33,006
high mileage

Half of all 2021 BMW M8 Competition Auto vehicles fall between 17,069 and 33,006 miles.

Is the mileage you're seeing normal?
Under 17,069 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.
17,069–33,006 miles — normal for age. This is where most 2021 BMW M8 Competition Autos sit.
Over 44,558 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2021 BMW M8 Competition Auto — Still on the Road

Almost all 2021 BMW M8 Competition Autos are still on the road.

Strong survival — 153 vehicles still getting MOTs in 2025, 99% of the peak.

11 153 2023 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2023–2025.

MOT History Averages

2.1
Avg MOT tests per vehicle
0.11
Avg failures per vehicle
0.8
Avg advisories per vehicle
Other model years — BMW M8 Competition Auto: All M8 Competition Auto years → Which year to buy? →
2020 2022 2023 2025

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