1991 Porsche 911 3.6L Petrol · H279 KGS

The latest MOT test conducted on 6 August 2026 resulted in a pass, although it noted minor defects regarding severely deteriorated dust covers on both the nearside and offside front upper anti-roll bar linkage ball joints. While the vehicle has a history of clean passes, the maintenance trend is difficult to quantify as a stable progression due to a significant ten-year gap in the MOT record between 2016 and 2026. This suggests the vehicle has likely been in long-term storage, meaning the current roadworthiness is a reflection of its recent return to service rather than a consistent history of annual road use. The recorded mileage of 78,997 miles is very low for a thirty-five year old vehicle, averaging roughly 2,257 miles per year. While this indicates minimal wear on the primary drivetrain and engine internals, such low usage often introduces a different set of mechanical risks. Long periods of inactivity can lead to the drying out of rubber seals, the degradation of lubricants, and the perishing of various suspension bushings, which can be more problematic than the predictable wear found on a higher-mileage example. Regarding the specific advisories, the deteriorated dust covers on the anti-roll bar linkages indicate that the protective rubber has perished due to age. When these covers fail, moisture and road debris penetrate the ball joint, leading to internal corrosion and eventual mechanical play. During a test drive, the buyer should listen for distinct knocking or clunking sounds from the front suspension when driving over uneven surfaces or during low-speed steering maneuvers. These components should be replaced shortly to ensure the structural integrity of the suspension system is maintained. Given the extensive period of inactivity, a comprehensive physical inspection is mandatory. The buyer must examine all tyre sidewalls for cracking and perishing, as tyres often fail due to age regardless of remaining tread depth. Brake discs should be checked for heavy surface corrosion, and the brakes should be tested for binding calipers that may have seized during storage. Furthermore, the 12V battery health should be verified, and all fluids should be inspected for calendar-based degradation. It is essential to confirm via service records that the oil and other critical fluids have been refreshed recently to prevent internal engine sludge or corrosion.