1974 Triumph Stag 3.0L Petrol · REH 638M

The most recent MOT, carried out on 13 July 2026, was passed with no recorded defects, and the preceding seven annual tests from 2019 to 2025 also returned clean passes. This uninterrupted succession of fault‑free examinations indicates a stable maintenance pattern, with no evidence of deteriorating components or emerging safety concerns over the last eight years. At 64 648 miles recorded on a 1974 Triumph Stag, the average annual mileage works out to roughly 1 240 miles per year. Such a low utilisation rate for a vehicle of this age suggests that the car has spent considerable periods in storage rather than being driven regularly. Light use generally reduces wear on consumables such as brake pads, tyres and clutch plates, but prolonged standing can promote corrosion of chassis members, suspension bushings and fuel‑system components, and can also lead to rubber and polymer ageing. For a prospective buyer the primary inspection focus should be on age‑related deterioration. Examine the tyre sidewalls for cracking, dry rot or hardening of the rubber, and verify that the tread depth is still within legal limits. Inspect the bodywork, under‑tray and suspension arms for any signs of rust, especially around the rear sub‑frame, wheel arches and the front suspension mounting points. Check the condition of the suspension bushes, coil springs and any rubber mounts for brittleness or loss of compliance, as these can cause clunking noises and altered handling if they have hardened. The braking system should be examined for surface rust on the discs, which can cause uneven pad wear or shudder, and the calipers should be moved to confirm they are not binding. A thorough visual check of the exhaust system for corrosion or cracks, and a look for any oil, coolant or fuel leaks around the engine bay and rear bulkhead, are also essential. Because the car has been lightly used for many decades, time‑based servicing is as important as mileage‑based work. Verify that the engine oil, brake fluid and coolant have been replaced at appropriate intervals – old brake fluid can absorb moisture and reduce braking efficiency, while aged coolant may lose its corrosion‑inhibiting properties. Test the 12 V battery for charge hold and inspect the terminals for corrosion, as long periods of inactivity can weaken battery performance. During a test drive listen for any abnormal noises from the gearbox, differential or suspension, watch for any vibration through the steering column, and feel for consistent braking response. Confirm that the service book, if present, contains stamps or receipts that corroborate regular oil changes, timing belt or chain maintenance, and any periodical overhauls that are typical for a classic Stag of this vintage.