1999 Jaguar XJR 4.0L Petrol · T366 ALR

The most recent MOT inspection on 22 November 2025 resulted in a pass, but the inclusion of an advisory regarding nearside front vehicle structure or chassis corrosion marks a shift in the maintenance trend. While the vehicle enjoyed a period of clean passes between 2022 and 2024, the emergence of structural corrosion suggests that age-related degradation is beginning to manifest in the chassis. This indicates a trend toward worsening structural integrity that requires close monitoring to ensure it does not progress to a major failure in future inspections. With 107,611 miles recorded over approximately 27 years, the vehicle has averaged roughly 3,986 miles per year. This is significantly lower than the national average and suggests the car has likely been used sparingly or kept in storage for extended periods. While low mileage generally implies less mechanical wear on the drivetrain and engine, it carries the specific risks associated with low-use vehicles, such as the degradation of rubber components, the drying out of seals, and the accumulation of moisture which can lead to corrosion in areas not frequently washed or ventilated. Prospective buyers must pay particular attention to the chassis and braking systems. The advisory regarding nearside front structural corrosion is a priority; you should visually inspect the mounting points and subframe areas for significant scale, bubbling, or thinning metal. Given the historical advisories regarding brake pipe corrosion from 2019 through 2021, it is essential to check the entire length of the brake lines for surface rust or signs of weeping fluid. During a test drive, listen for any clunks from the suspension which might indicate perished bushes, and feel for any brake pedal sponginess or shuddering that could suggest compromised hydraulic integrity or binding calipers caused by long periods of standing. Furthermore, the low annual mileage necessitates a thorough inspection of age-related consumables. Examine the tyre sidewalls for any signs of perishing or fine cracking, as rubber can lose its elasticity even if tread depth remains high. Check the condition of all fluid levels, including engine oil, coolant, and brake fluid, looking for signs of contamination or moisture ingress. It is also advisable to verify the service history to ensure that calendar-based maintenance, such as coolant flushes and oil changes, has been performed regardless of the low mileage. Finally, check for any electrical gremlins or battery health issues, as older Jaguars can be sensitive to voltage fluctuations if the vehicle has not been regularly driven.