BMW 420i M Sport Pro Edition Auto (2021)
2021 BMW 420i M Sport Pro Edition Auto
CarHunch analysed 278 real MOT records for the 2021 BMW 420i M Sport Pro Edition Auto.
Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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The 2021 BMW 420i M Sport Pro Edition is a reliable performer, with a 90.6% first-time pass rate that sits well ahead of the UK average of 80%—and importantly, only 14.4% of vehicles have ever recorded a dangerous defect, which is comfortably below the concern threshold. The petrol engines show consistent results across the cohort at 90.2% pass rate.
At a median mileage of 25,358 miles for a 2021 model, these cars are running lightly, which explains the low failure rate of just 0.24 per vehicle on average. Most cars rack up minor advisory issues (0.8 per vehicle on average), typical wear items rather than structural problems—so when shopping for one, get a pre-purchase inspection to confirm that any advisories flagged have been addressed, and you'll have a solid used buy.
We have limited data for the 2021 BMW 420i M Sport Pro Edition Auto — treat the figures below as indicative rather than definitive.
These stats describe 278 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.
See this vehicle's full MOT history & AI hunches
Spot recurring advisories, hidden issues, and how it compares to 278 BMW 420i M Sport Pro Edition Auto cars.
Before you buy a 2021 BMW 420i M Sport Pro Edition Auto
Based on MOT data from 278 vehicles — here's what to check.
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Check the full MOT history.
14.4% 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. -
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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
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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
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (96%) | 268 | 92.3% | 0.25 |
Colour Breakdown
Based on 992 BMW 420i M Sport Pro Edition Auto vehicles registered in the UK — across all years. From DVLA registration records.
Mileage Distribution
Most 2021 BMW 420i M Sport Pro Edition 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.
Half of all 2021 BMW 420i M Sport Pro Edition Auto vehicles fall between 19,086 and 34,746 miles.
2021 BMW 420i M Sport Pro Edition Auto — Still on the Road
Almost all 2021 BMW 420i M Sport Pro Edition Autos are still on the road.
Strong survival — 262 vehicles still getting MOTs in 2025, 100% of the peak.
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
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Compare with another model
See how the 2021 BMW 420i M Sport Pro Edition Auto stacks up against a rival.