Porsche Cayman MOT pass rates & common failures

Every completed first-attempt MOT on a Porsche Cayman in Great Britain in 2025 — 15,716 tests. Figures cover every Cayman first-tested in 2025, all trims grouped. How the Cayman ages, what it fails on, and what mileage is normal, computed directly from the official DVSA record of every test.

Pass rate 2025
89.3%
17.0 points above the class-4 average (72.3%); unadjusted for age — the age-matched comparison is below
Tests analysed
15,716
first tests, 2025
Arrived with a dangerous fault
2.6%
of Cayman first tests; national 7.3%
Typical mileage at 10 years
36,250
middle half: 23,750–51,250 miles (2,500-mile-band midpoints)

How the Cayman ages

First-time pass rate by vehicle age, Cayman vs all cars, 2025.

Porsche CaymanAll cars
50%60%70%80%90%100%3579111315171920Vehicle age (years)Porsche Cayman, vehicle age 3: 94.9%Porsche Cayman, vehicle age 4: 95.4%Porsche Cayman, vehicle age 5: 95.3%Porsche Cayman, vehicle age 6: 94.6%Porsche Cayman, vehicle age 7: 93.8%Porsche Cayman, vehicle age 8: 93.1%Porsche Cayman, vehicle age 9: 93.9%Porsche Cayman, vehicle age 10: 93.3%Porsche Cayman, vehicle age 11: 91.1%Porsche Cayman, vehicle age 12: 90.1%Porsche Cayman, vehicle age 14: 88.2%Porsche Cayman, vehicle age 15: 85.8%Porsche Cayman, vehicle age 16: 87.1%Porsche Cayman, vehicle age 17: 78.2%Porsche Cayman, vehicle age 18: 80.6%Porsche Cayman, vehicle age 19: 79.3%All cars, vehicle age 3: 88.5%All cars, vehicle age 4: 87.2%All cars, vehicle age 5: 86%All cars, vehicle age 6: 83.5%All cars, vehicle age 7: 80.9%All cars, vehicle age 8: 78.2%All cars, vehicle age 9: 74.9%All cars, vehicle age 10: 71.9%All cars, vehicle age 11: 68.6%All cars, vehicle age 12: 65.8%All cars, vehicle age 13: 63.5%All cars, vehicle age 14: 61.2%All cars, vehicle age 15: 59.3%All cars, vehicle age 16: 58.3%All cars, vehicle age 17: 57.2%All cars, vehicle age 18: 57.4%All cars, vehicle age 19: 57%All cars, vehicle age 20: 57.6%Porsche Cayman 79.3%All cars 57.6%
View this chart as a table
Age (years)Cayman testsCayman pass rateAll cars
380594.9%88.5%
467195.4%87.2%
579395.3%86.0%
61,08794.6%83.5%
71,19093.8%80.9%
888293.1%78.2%
91,00693.9%74.9%
101,09993.3%71.9%
111,19391.1%68.6%
121,04290.1%65.8%
1453588.2%61.2%
1552785.8%59.3%
1665987.1%58.3%
1786578.2%57.2%
181,39480.6%57.4%
191,43779.3%57.0%

Better or worse than the average car?

The Cayman's pass rate minus the all-cars pass rate at each age, in percentage points. Bars above zero: the Cayman beats the average car of that age. Below zero: it trails.

Cayman ahead
-30-15+0+15+30Age 3: +6.4 points vs the average car3Age 4: +8.2 points vs the average carAge 5: +9.3 points vs the average car5Age 6: +11.1 points vs the average carAge 7: +12.9 points vs the average car7Age 8: +14.9 points vs the average carAge 9: +19.0 points vs the average car9Age 10: +21.4 points vs the average carAge 11: +22.5 points vs the average car11Age 12: +24.3 points vs the average carAge 14: +27.0 points vs the average carAge 15: +26.5 points vs the average car15Age 16: +28.8 points vs the average carAge 17: +21.0 points vs the average car17Age 18: +23.2 points vs the average carAge 19: +22.3 points vs the average car19Vehicle age (years)
View this chart as a table
Age (years)Gap (points)
3+6.4
4+8.2
5+9.3
6+11.1
7+12.9
8+14.9
9+19.0
10+21.4
11+22.5
12+24.3
14+27.0
15+26.5
16+28.8
17+21.0
18+23.2
19+22.3

The Cayman fleet on the road, by age

How many took a first MOT in 2025 at each age — the shape of the Cayman fleet still in use.

05001k1k2kAge 3: 8053Age 4: 671Age 5: 7935Age 6: 1kAge 7: 1k7Age 8: 882Age 9: 1k9Age 10: 1kAge 11: 1k11Age 12: 1kAge 14: 535Age 15: 52715Age 16: 659Age 17: 86517Age 18: 1kAge 19: 1k19Vehicle age (years)
View this chart as a table
Age (years)First tests
3805
4671
5793
61,087
71,190
8882
91,006
101,099
111,193
121,042
14535
15527
16659
17865
181,394
191,437

What a Cayman fails on

Where the failure items land when a Cayman fails or needs a fix at test, 2025. Use it as a pre-purchase checklist: these are the areas to look at first.

Lamps, reflectors and electrical equipment24.9%
Brakes18.3%
Tyres18.2%
Suspension11.5%
Noise, emissions and leaks9.9%
Visibility7.6%
Identification of the vehicle3.5%
Steering2.4%

Share of all failure items, 2025 — the 8 biggest categories shown (96.2% of the items); smaller categories are not listed.

The advisories to watch

Where testers most often write "keep an eye on this" for a Cayman, 2025 — the faults in the post.

Tyres: 38.1% of advisories38.1%Brakes: 35.7% of advisories35.7%Suspension: 10.3% of advisories10.3%Non-component advisories: 6.6% of advisoriesNoise, emissions and leaks: 3.3% of advisoriesBody, chassis, structure: 2.0% of advisories
TyresBrakesSuspensionNon-component advisoriesNoise, emissions and leaksBody, chassis, structure
View this chart as a table
CategoryShare of advisories
Tyres38.1%
Brakes35.7%
Suspension10.3%
Non-component advisories6.6%
Noise, emissions and leaks3.3%
Body, chassis, structure2.0%

What mileage is normal for a Cayman?

Mileage recorded at test by vehicle age, 2025. The line is the typical (median) Cayman; the shaded band holds the middle half. A car far outside the band, in either direction, is worth questions the recorded history can answer.

Typical Cayman (median)
0k25k50k75k100k357911151719Vehicle age (years)Age 3: typical 8,750 miles (middle half 6,250–13,750)Age 4: typical 13,750 miles (middle half 8,750–21,250)Age 5: typical 16,250 miles (middle half 8,750–23,750)Age 6: typical 26,250 miles (middle half 16,250–33,750)Age 7: typical 31,250 miles (middle half 21,250–41,250)Age 8: typical 33,750 miles (middle half 23,750–46,250)Age 9: typical 28,750 miles (middle half 18,750–43,750)Age 10: typical 36,250 miles (middle half 23,750–51,250)Age 11: typical 46,250 miles (middle half 33,750–63,750)Age 12: typical 51,250 miles (middle half 36,250–66,250)Age 14: typical 53,750 miles (middle half 38,750–73,750)Age 15: typical 66,250 miles (middle half 51,250–83,750)Age 16: typical 66,250 miles (middle half 48,750–86,250)Age 17: typical 73,750 miles (middle half 56,250–93,750)Age 18: typical 78,750 miles (middle half 58,750–96,250)Age 19: typical 78,750 miles (middle half 61,250–98,750)78k mi

Mileage values are midpoints of 2,500-mile bands.

View this chart as a table
Age (years)Lower quarterTypical (median)Upper quarter
36,2508,75013,750
48,75013,75021,250
58,75016,25023,750
616,25026,25033,750
721,25031,25041,250
823,75033,75046,250
918,75028,75043,750
1023,75036,25051,250
1133,75046,25063,750
1236,25051,25066,250
1438,75053,75073,750
1551,25066,25083,750
1648,75066,25086,250
1756,25073,75093,750
1858,75078,75096,250
1961,25078,75098,750

What fails at each age

The Cayman's failure mix by age band, 2025 — each band's top categories at their true share of that band's failure items; the pale remainder is everything else. How the mix shifts with age is the point of the chart.

TyresLamps, reflectors and electrical equipmentIdentification of the vehicleVisibilityBrakesSuspensionNoise, emissions and leaksEverything else
View this chart as a table
Age bandCategoryShare of the band's failure items
3-5 yrsTyres59.8%
3-5 yrsLamps, reflectors and electrical equipment10.3%
3-5 yrsIdentification of the vehicle9.4%
3-5 yrsVisibility8.5%
3-5 yrsBrakes5.1%
3-5 yrsEverything else6.9%
6-9 yrsTyres52.0%
6-9 yrsVisibility11.0%
6-9 yrsLamps, reflectors and electrical equipment10.0%
6-9 yrsSuspension7.8%
6-9 yrsBrakes6.9%
6-9 yrsEverything else12.3%
10-13 yrsTyres30.2%
10-13 yrsBrakes17.6%
10-13 yrsSuspension13.5%
10-13 yrsLamps, reflectors and electrical equipment13.3%
10-13 yrsVisibility11.3%
10-13 yrsEverything else14.1%
14+ yrsBrakes24.6%
14+ yrsLamps, reflectors and electrical equipment23.8%
14+ yrsSuspension14.0%
14+ yrsNoise, emissions and leaks13.0%
14+ yrsTyres10.2%
14+ yrsEverything else14.4%
How these figures are computed. Every number on this page is calculated by SortedCars from the DVSA anonymised MOT results dataset (every MOT test in Great Britain — 2025 for single-year figures; trend figures state their span, currently 2023–2025). Where a figure comes from a sample or uses banded values (mileage is banded to 2,500 miles), the page says so beside the figure. Test class 4 only, first tests only — retests are excluded. Class 4 is the car MOT class and also covers car-derived vans, pickups and motorhomes tested to the same standard; where this page says "cars" it means class 4. Pass rate = passes ÷ (passes + failures + pass-after-rectification): a vehicle that failed and was fixed during the visit counts as a fail. Pass rates describe fleets, not individual machines: they reflect how cars were driven, maintained and used as well as how they were built, and beyond recorded mileage none of that is in the data. A well-kept example of a model with a weak average can still pass; a neglected example of a strong one can still fail. No figure is shown for any group with fewer than 500 tests. Alias spellings of a make in the DVSA file are counted under one make name, and all trims and variants of a model are grouped under one model name, using SortedCars' grouping tables. “Dangerous” is DVSA's statutory defect category (in force since May 2018): a defect posing an immediate risk to road safety — driving the vehicle before repair is an offence. What these figures are for. These statistics are general information about groups of vehicles. They are not advice, a valuation or a recommendation to buy, avoid or price any particular vehicle, and no decision about one car should rest on them alone — check the car itself and its own records. We take care over the calculations, but we cannot guarantee they are complete, current or free of error, and we accept no liability for loss arising from reliance on them. This does not limit any liability that cannot lawfully be limited — see our Terms & Conditions. If you believe any figure on this page is inaccurate, contact us. SortedCars is not affiliated with, or endorsed by, the DVSA or DVLA. DVSA publishes the raw test records; the statistics on this page are SortedCars' own calculations from them. Contains public sector information licensed under the Open Government Licence v3.0.