P Porsche 911 GT3 MOT Pass Rate & Official DVSA Failure Statistics

Porsche 911 GT3 MOT History and Failure Rates vs UK National Average

The Porsche 911 GT3 passed on its first attempt in 97.0%, and its overall record sits +16.1 percentage points above the national average for all cars. These figures come from every recorded DVSA MOT test for the Porsche 911 GT3 in the 2023–2025 data: 441 tests across 2 model years (2021–2022). A test still carries exactly one pass or fail verdict.

Figures are computed from every recorded DVSA test for this model in the 2023–2025 data.

Most Common Porsche 911 GT3 MOT Problems by Failure Category

Every MOT failure a tester records belongs to one inspection section of the DVSA manual. For the Porsche 911 GT3, the Visibility section leads the record — the breakdown below shows where the recorded failures cluster, then the exact strings behind the three biggest sections.

Shares are over the Porsche 911 GT3's recorded defect strings, merged across its year pages.

Top Recorded Porsche 911 GT3 DVSA MOT Test Statistics & Defect Descriptions

The descriptions below are the exact DVSA failure strings testers recorded most often for the Porsche 911 GT3, each with how many of the model's 441 tests it was noted on.

• "Windscreen damaged but not adversely affecting driver's view" (Minor) — noted on about 5 Porsche 911 GT3 tests, 1.1% of the model's MOT record.
• "Registration plates does not conform to the specified requirements" (Major) — noted on about 4 Porsche 911 GT3 tests, 0.9% of the model's MOT record.
• "Shock absorbers has a serious fluid leak" (Major) — noted on about 3 Porsche 911 GT3 tests, 0.7% of the model's MOT record.
• "Has a cut in excess of the requirements deep enough to reach the ply or cords" (Major) — noted on about 3 Porsche 911 GT3 tests, 0.7% of the model's MOT record.
• "Joints constant velocity boot split or insecure, no longer prevents the ingress of dirt" (Major) — noted on about 2 Porsche 911 GT3 tests, 0.5% of the model's MOT record.
• "Window damaged but not adversely affecting driver's view" (Minor) — noted on about 2 Porsche 911 GT3 tests, 0.5% of the model's MOT record.

Best and Worst Porsche 911 GT3 Model Years by Pass Rate

The strongest Porsche 911 GT3 model year on record is 2022 (97.7% across 213 tests), and the weakest is 2021 (96.5%). The gap between them is 1.2 points. Years with fewer than 50 recorded tests are excluded, so these are the years with enough MOT history to mean something.

Newest model year first. Only years with at least 50 recorded tests are listed.

Pre-MOT Inspection Checklist for Porsche 911 GT3 Owners

These checks follow this Porsche 911 GT3's own most-recorded failure strings, starting with what a tester is most likely to flag on a Porsche 911 GT3.

• the windscreen — “windscreen damaged”

  Check the driver’s side of the screen within the swept area for chips and cracks; anything larger than 10mm in the driver’s central view is a fail. Most chips can be resin-repaired for far less than a new screen.

• the number plates — “registration plates does not conform to the specified requirements”

  Check both plates are present, legible and correctly spaced, with the postcode of the supplier and the BS AU 145e mark. A private plate in the wrong style is a fail before the car is even looked at.

• the shock absorbers — “shock absorbers has a serious fluid leak”

  Press down hard on each corner of the car and let go. It should settle in one bounce; if it keeps rocking, or you can see oil weeping down a shock absorber, that is the fault a tester will find.

Derived from the DVSA failure strings testers recorded for the Porsche 911 GT3. A check that finds nothing means the item is likely fine, not that the test is guaranteed.

Frequently Asked Questions: Porsche 911 GT3 MOT & Reliability