Porsche 911 Carrera S S A (2012)
2012 Porsche 911 Carrera S S A
CarHunch analysed 286 real MOT records for the 2012 Porsche 911 Carrera S S A. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 2012 Porsche 911 Carrera S is a severe reliability outlier: just 12.7% pass on the first MOT attempt versus the UK average of 80%, with petrol variants managing only 8.2%. Dangerous defects are rare at 1.1%, but the first-time pass rate is so catastrophically low that this car demands serious pre-purchase inspection by a Porsche specialist.
The median mileage of 45,295 miles is modest for a 12-year-old sports car, yet these vehicles still accumulate 0.1 failures and 0.5 advisories per test on average—suggesting systemic issues rather than wear-and-tear damage. Before buying, pay for an independent Porsche diagnostic and budget heavily for remedial work; the MOT figures tell you that most examples arriving for their first test are nowhere near roadworthy.
What to check before buying a 2012 Porsche 911 Carrera S S A
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Porsche 911 Carrera S S A
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (94%) | 270 | 8.2% | 0.07 |
| Other (5%) | 15 | 89.1% | 0.53 |
| Diesel (0%) | 1 | 100% | 0 |
Mileage Distribution
Most 2012 Porsche 911 Carrera S S A vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2012 Porsche 911 Carrera S S A vehicles fall between 34,634 and 51,902 miles.
2012 Porsche 911 Carrera S S A — Still on the Road
Strong survival — 33 vehicles still getting MOTs in 2025, 92% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2015–2025.
MOT History Averages
Found a specific Porsche 911 Carrera S S A?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.