Porsche MOT Failure Rates
MOT failure rates for 7 Porsche models, ranked from highest to lowest failure rate. Data from official DVSA MOT test records covering 142 million UK MOT tests.
Porsche MOT Reliability Overview
Across 7 models with sufficient test data, Porsche vehicles have an average MOT failure rate of 12.2%. This puts Porsche below the UK national average of 28%, suggesting above-average reliability across the range.
The most reliable Porsche model for MOT is the Porsche Taycan with a 7.1% failure rate. The highest failure rate belongs to the Porsche Boxster at 16.8%.
These figures are calculated from real DVSA MOT test records and represent weighted averages across all vehicle ages and mileage bands. Only models with 100 or more test records are included to ensure statistical reliability.
Which Porsche Models Fail MOT Most?
| Model | Failure Rate | Total Tests |
|---|---|---|
| Porsche Boxster | 16.8% | 156,234 |
| Porsche Macan | 16.2% | 191 |
| Porsche Cayenne | 13.7% | 149,170 |
| Porsche 911 | 11.2% | 253,372 |
| Porsche Panamera | 10.4% | 37,805 |
| Porsche Cayman | 9.8% | 72,421 |
| Porsche Taycan | 7.1% | 15,485 |
How we calculate failure rates: Rates are weighted averages across all mileage bands for each model. Only models with 100+ test records are shown. Data sourced from official DVSA MOT test records covering 142 million tests.
Porsche MOT FAQs
Are Porsche cars reliable for MOT?
Porsche has 7 models in our database. Overall, Porsche vehicles perform well in MOT tests with an average failure rate below the national average of 28%. Click on any model above to see a detailed component-level breakdown.
Which Porsche model is best for MOT?
The Porsche Taycan has the lowest MOT failure rate at 7.1%, making it the most reliable Porsche model in our dataset. See full Porsche Taycan MOT data.
Which Porsche model fails MOT most?
The Porsche Boxster has the highest failure rate at 16.8%. This doesn’t necessarily mean it’s a bad car — higher failure rates often correlate with older average vehicle age. See full Porsche Boxster MOT data.
How can I predict if my Porsche will pass its MOT?
AutoSafe offers a free AI-powered MOT prediction tool. Enter your registration number and postcode to get a personalised failure risk assessment based on your specific vehicle’s age, mileage, and MOT history.
Check Your Porsche
Enter your reg to get a personalised MOT failure prediction for your specific Porsche.
Related Guides
- Top 10 MOT Failure Points
- Pre-MOT Checklist
- MOT Failure Rates by Car
- How to Check MOT History
- Will My Car Pass Its MOT?
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