2006 Mazda MX-5 1.8L Petrol · KH06 EXN

The vehicle currently presents a precarious roadworthiness status with a clear trend of worsening structural integrity. While it passed its latest MOT on 11 June 2026 at 90,884 miles, this followed a significant failure just two miles prior. That failure revealed critical structural defects, specifically the offside rear inner suspension mounting and seat belt anchorage, which suffered from excessive corrosion significantly reducing structural strength. Although these points were addressed to secure the pass, the presence of widespread corrosion across the inner sills and floor indicates an active process of decay that remains unresolved. The mileage profile is notably low for a twenty-year-old vehicle, averaging approximately 4,500 miles per year. There is a recorded gap of 7,000 miles between the 2025 test at 83,847 miles and the 2026 test at 90,884 miles. Low usage often correlates with less mechanical wear, but in this specific case, it appears to have exacerbated environmental damage, as the car likely sat stationary, allowing prolonged exposure to moisture without the beneficial effect of movement drying out components. A buyer must conduct a rigorous physical inspection of the chassis, specifically sills, and sub-frames. The record shows recurring corrosion issues on the front and rear sub-frames from May 2025, which have progressed into structural failures by June 2026. The suspension system is showing multiple signs of fatigue, with corroded coil springs and deteriorating dust covers on tie rods and anti-roll bar linkages noted. These issues suggest the rubber components are nearing the end of their functional life. Brake components also require close scrutiny due to noted corrosion on the brake hose ferrule in May 2025 and a previous rough nearside rear wheel bearing. The presence of a full-body underseal noted in June 2025 may mask the true extent of the rustwork, making a tactile probe of the sills and floor pans essential to determine if the metal is thinning beyond the surface level.