A 1997 Jaguar XK8 carrying 155,242 miles presents a notably clean DVSA roadworthiness record, with four consecutive passes since November 2022 and no advisories or defects recorded at any point. This is a reassuring pattern for a 29-year-old grand tourer, suggesting the car has been maintained to a standard sufficient to satisfy the MOT test each year without intervention items being flagged for the examiner's attention. The single failure recorded in October 2022 is unusual only in that it carries no recorded defect categories, which typically indicates a vehicle presented for test in a state that could not be assessed, such as being unable to start, lacking insurance documentation for the tester, or similar administrative or operational issue rather than a mechanical non-compliance. Since that episode, the car has passed cleanly on four consecutive occasions, with the most recent pass at 155,242 miles on 11 November 2025 confirming ongoing structural and systemic fitness for the road. The absence of corrosion advisories on a car of this vintage is particularly noteworthy, as the XK8 platform is well known for subframe and rear suspension mounting rust, so its clean sheet across multiple tests suggests the underside has been protected or at least not yet reached the examiner failure threshold.
Against a 29-year vehicle age, the recorded annual mileage of around 5,353 miles is substantially below the typical accumulation rate, which for a car of this type and era would usually fall between 6,000 and 8,000 miles per year. This lower-than-average usage profile raises two specific mechanical considerations for any prospective buyer. First, low annual mileage does not necessarily mean light wear on consumable components such as brake discs, pads, tyres, and the like, because corrosion through underuse can be as damaging to components as wear through use. Second, a vehicle of this age standing for extended periods is vulnerable to sealing degradation in the engine and transmission, deterioration of rubber components including coolant hoses, intake ducts, and damper bushes, and flat-spotting or sidewall cracking of tyres that may not have been replaced for many years. The MOT records do not show any multi-year gaps in testing, which is positive, but the gap between 2022-10-03 and 2022-11-18, only six weeks apart, combined with otherwise regular annual attendance, indicates the vehicle has been kept on the road continuously throughout the recorded period. Buyers should not interpret the low mileage as a guarantee of mechanical freshness; it should instead prompt a careful inspection of items that degrade through age rather than use, including drive belts, cooling system hoses, fuel system rubber, brake hydraulic seals, and the condition of the tyres themselves for age-related cracking regardless of tread depth.
Given the clean MOT record but the absence of any advisory items to anchor a component-specific assessment, the most valuable guidance for a prospective buyer is to focus inspection effort on the systems historically prone to failure on the XK8 platform, several of which would not necessarily result in an MOT failure but are commonly encountered on test drive. The Nikasil-lined cylinder bore issue that affected early XK8 engines, particularly those built before 2000, is a known concern and any signs of excessive oil consumption, blue smoke on start-up, or rough running should be investigated immediately through a compression test or borescope inspection. The automatic transmission, particularly the early 4-speed unit fitted to 1997 models, is another area requiring attention, and any hesitation, flare between gears, or harsh engagement during a warm test drive would warrant specialist attention. The cooling system is a frequent source of complaint on these vehicles, and buyers should verify even temperature behaviour under sustained driving, listen for any auxiliary cooling fans cutting in at the correct temperature threshold, and check the header tank for any signs of past mixing of coolant types. Suspension condition on a car that has covered 155,242 miles, even gradually, will be approaching the limits of original component life, and a test drive over uneven surfaces should be used to listen for knocking from the front lower wishbones, rear hub carriers, and anti-roll bar links, all of which are common wear items.
Brake feel and effectiveness also warrants close attention during a road test, as the XK8 uses a sophisticated system with potential for binding calipers during periods of light use, and any pulling to one side under firm braking or a spongy pedal feel should prompt immediate inspection. The steering rack and power-assisted system should be evaluated for any fluid leaks from the rack itself or the PAS reservoir, and the steering should return smoothly to centre without excess kickback over uneven surfaces. On a 1997 example, electrical integrity is also a meaningful concern, as the XK8 carries a substantial electrical load through the convertible or coupé body systems, including seat memory functions, climate control, and instrument cluster; any warning messages, flickering displays, or non-functional accessories during a test drive should be noted and investigated against the vehicle's full electrical history. Finally, the body and structural condition should be examined on a ramp or over an inspection pit, as the MOT record's clean sheet relates only to items tested under DVSA criteria, and age-related corrosion around the rear suspension mounting points, jacking points, and sill lower flanges is frequently found on these cars before it progresses to the level of an MOT failure. A pre-purchase inspection by a marque specialist would be strongly advisable given the car's value, age, and the limitations of what an MOT certificate alone can confirm.