2008 Porsche Cayman 2.7L Petrol · YA57 TWC

This Porsche Cayman’s most recent MOT tests reveal a concerning pattern of repeated failures despite no recorded defects, with three consecutive tests (April 2024, April 2025, and May 2025) all concluding in failure—despite identical mileage readings at the time of testing. The absence of any advisory notes or defect descriptions suggests either a systemic issue with the testing process, a vehicle that consistently meets the bare minimum MOT thresholds, or a deliberate omission of critical findings. The most recent test, conducted just over two months ago on 9 May 2025, failed again at 83,055 miles, indicating no meaningful improvement in roadworthiness over the past year. Buyers should treat this as a red flag, as repeated failures without explanation often point to either deferred maintenance or a vehicle that has been driven through its MOT cycle without proper attention to underlying wear. The recorded mileage of 83,055 miles over an 18-year span equates to approximately 4,600 miles per year, which is unusually low for a high-performance sports car of this age. The gap between tests—particularly the three-month interval between the April 2024 pass and the April 2025 failure—suggests the vehicle may have been stationary or lightly used during this period. However, the lack of mileage progression between the April 2025 and May 2025 failures (83,054 to 83,055 miles) is highly suspicious and warrants verification, as it implies either an error in mileage recording or that the vehicle was not driven between tests. This pattern raises questions about whether the car has been properly maintained or if critical components have been neglected over time. Given the repeated MOT failures and the absence of specific defect details, a buyer should prioritise an independent inspection of high-wear areas that often fail silently or are overlooked in basic MOT checks. The suspension—particularly the coil springs, bushes, and dampers—should be examined for uneven wear or binding, as these components degrade progressively and can lead to handling issues. Brake systems, including calipers, pads, and discs, require close scrutiny for corrosion, uneven wear, or binding, especially if the vehicle has been stationary for extended periods. Structural integrity, particularly around the subframe, sills, and wheel arches, should be checked for corrosion or damage, as Porsche Caymans from this era are prone to rust in high-stress areas. Finally, the exhaust system and emissions components should be inspected for leaks or blockages, as these are common failure points in older sports cars that often go unnoticed until they affect MOT compliance.