Porsche Cayman — reliability by registration year
2006–2022 · 16 registration years · 14,431 first tests
Registration years
First-attempt MOT results for every Cayman registration year with at least 500 first tests in 2025. Pass rates rise with newer cars, so read a year against its neighbours rather than against the top of the table. Years without their own report are listed here with the same figures.
| Year | First tests | First-attempt pass | Incl. PRS | Most common failure |
|---|---|---|---|---|
| 2022 | 767 | 94.9% | 95.6% | |
| 2021 | 640 | 95.2% | 96.2% | |
| 2020 | 759 | 95.1% | 96.3% | |
| 2019 | 1,012 | 94.5% | 94.9% | |
| 2018 | 1,112 | 93.4% | 93.9% | |
| 2017 | 842 | 92.9% | 94.4% | |
| 2016 | 941 | 93.5% | 94.5% | |
| 2015 | 1,046 | 93.0% | 94.1% | |
| 2014 | 1,136 | 90.8% | 92.0% | |
| 2013 | 1,003 | 89.8% | 91.4% | |
| 2011 | 518 | 87.8% | 89.4% | |
| 2010 | 509 | 85.9% | 88.0% | |
| 2009 | 633 | 86.7% | 88.5% | |
| 2008 | 824 | 78.3% | 82.5% | |
| 2007 | 1,326 | 80.2% | 83.8% | Position lamp (front) 28.1% |
| 2006 | 1,363 | 79.5% | 82.0% | Catalyst emissions 22.1% |