Porsche Cayman
Reliability, running costs, and MOT data across 18 years from 36,158 real MOT tests.
Avg Pass Rate
94%
Total Tests
36,158
Best Year
2022 (100%)
Years Covered
18
About the Porsche Cayman
The Porsche Cayman has been tested 36,158 times in 2026 MOT data across 18 model years (2005 to 2022), with an average pass rate of 94%. That's comfortably above the national average of 82%, making it a reliable choice. Available as petrol.
Best and Worst Years
The 2022 model is the most reliable with a 100% pass rate from 60 tests. The 2006 model has the lowest at 86%. The 14 point spread between years means reliability varies somewhat, but no year is dramatically different.
Reliability Trend
Newer PORSCHE CAYMANs show better MOT pass rates than older ones, with an average improvement of 5 percentage points.
Mileage Across Years
The oldest model in our data (2005) averages 84,339 miles, while the newest (2022) averages 10,562 miles.
Estimated Running Costs
Based on 7,400 miles/year, current fuel prices, and MOT pass rate data. Insurance not included.
Full 2022 detailsHow reliable is the Porsche Cayman?
Porsche Cayman by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
| Year | Pass Rate | Tests | Avg Mileage | |
|---|---|---|---|---|
| 2022 | 100% | 60 | 10,562 mi | |
| 2021 | 97% | 1,230 | 16,318 mi | |
| 2020 | 97% | 1,421 | 17,106 mi | |
| 2019 | 95% | 2,635 | 23,973 mi | |
| 2018 | 96% | 3,611 | 29,634 mi | |
| 2017 | 95% | 2,747 | 32,888 mi | |
| 2016 | 96% | 2,725 | 30,854 mi | |
| 2015 | 96% | 2,774 | 36,438 mi | |
| 2014 | 94% | 2,963 | 49,014 mi | |
| 2013 | 95% | 2,270 | 50,622 mi | |
| 2012 | 96% | 691 | 51,012 mi | |
| 2011 | 92% | 1,167 | 54,736 mi | |
| 2010 | 90% | 1,201 | 67,244 mi | |
| 2009 | 93% | 1,466 | 67,126 mi | |
| 2008 | 89% | 2,312 | 74,137 mi | |
| 2007 | 88% | 3,100 | 77,221 mi | |
| 2006 | 86% | 3,424 | 80,301 mi | |
| 2005 | 89% | 361 | 84,339 mi |
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