1998 Jaguar XK8 4.0L Petrol · A2 LLK

A 1998 Jaguar XK8 carrying only 26,074 recorded miles across nearly three decades presents an unusual roadworthiness profile, and the MOT history is consistent with a vehicle that has seen very limited annual use. Across the recorded test history the car has demonstrated a generally stable pattern of compliance, passing seven times with no defects recorded on five occasions, the latest being a clean pass on 13 October 2025. The single failure, recorded on 17 March 2020, was a relatively minor affair centred on an inoperative driver's seat fore and aft adjustment mechanism and a nearside headlamp aim set too low, neither of which represents a structural or mechanical concern. Advisories have been sparse but telling: a front oil leak from the sump seal in October 2024 and a worn offside front anti-roll bar pin or bush in March 2019. The cumulative picture is one of limited mechanical flagging rather than chronic deterioration, though the advisory count is low enough that genuine condition cannot be fully inferred from MOT data alone. With 26,074 miles spread across roughly 28 years, the average annual accumulation is approximately 931 miles, which is exceptionally low for any road vehicle and particularly so for a sports-orientated grand tourer of this era. There is a notable testing gap between March 2020 and March 2019, and the broader record suggests long stretches of either storage or very light use interspersed with short periods of activity. Mechanically, this profile carries specific risks well beyond simple wear rates. Seals, gaskets and flexible components such as the sump seal highlighted in 2024 harden and degrade with age rather than mileage, and the very low use figure raises legitimate questions about whether hoses, CV joint boots, brake caliper slides, and the anti-roll bar bush already flagged in 2019 have been exercised sufficiently to remain serviceable. Standing fluid in the brake and clutch systems also raises corrosion concerns internally, even where external components have not yet attracted advisories. A prospective buyer should treat the 2024 sump seal advisory as an active point of inspection rather than a closed matter. On a cold start, listen for any change in the rhythm of the engine that might indicate worsening oil pressure, and inspect the underside directly for fresh seepage along the sump flange, oil pan gasket, and adjacent areas such as the front timing cover, which on the AJ-V8 is a known seepage point. A minor film that has not progressed in twelve months is acceptable, but any active dripping or residue reaching the lower exhaust downpipe warrants negotiation. The headlamp aim failure from 2020 should also be revisited; headlamp levelling motors and the plastic adjusters on these vehicles seize with disuse, so verify that both headlamps project to the correct horizontal cutoff on a flat surface and that any automatic or manual levelling system actually moves the beam when adjusted. The 2019 advisory concerning the offside front anti-roll bar bush is the most directly testable item on a road evaluation. With the vehicle unladen, push laterally on each front corner and feel for any looseness or clonking through the suspension, particularly over speed humps and uneven B-road surfaces. A worn anti-roll bar pin or bush typically presents as a metallic rattle or slack thump rather than the duller thud of a worn wishbone bush. Given the low mileage, the buyer should also conduct a thorough walkaround paying particular attention to underbody corrosion, as road salt exposure over nearly three decades can perforate jacking points, floor pans, and subframe mounting areas even on a seldom-driven car. Check that the handbrake mechanism releases cleanly without seizing, confirm the tyres are recent regardless of the 2020 advisory noting age-related rubber, and verify that the seat fore and aft mechanism repaired after the 2020 failure has not re-developed the same fault.