Porsche 718 Cayman GT4 S-A
Reliability, estimated running costs, and MOT data across 1 model year from 564 MOT tests in 2024.
Avg Pass Rate
97%
Total Tests
564
Model Year
2021
Years Covered
1
About the Porsche 718 Cayman GT4 S-A
The Porsche 718 Cayman GT4 S-A was MOT tested 564 times in 2024 (DVSA data, retests included) across 1 model year (2021), with an average pass rate of 97%. That's comfortably above the average of 82% across all models in our data. Our records list petrol versions.
Compared to the Porsche brand average of 92%, the 718 Cayman GT4 S-A performs 5 points better, making it one of the more reliable options in the Porsche range.
Estimated Running Costs
Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.
Full 2021 detailsHow reliable is the Porsche 718 Cayman GT4 S-A?
Porsche 718 Cayman GT4 S-A by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
| Year | Pass Rate | Tests | Avg Mileage | |
|---|---|---|---|---|
| 2021 | 97% | 564 | 10,490 mi |
Questions about the Porsche 718 Cayman GT4 S-A
Is the Porsche 718 Cayman GT4 S-A reliable?
Across its 1 model year in our data (2021), the Porsche 718 Cayman GT4 S-A averages a 97% MOT pass rate, from 564 tests (DVSA MOT data for tests in 2024, retests included). That's 15 points above the average of 82% across all models in the same data.
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