1960 Aston Martin DB4 3.7L Petrol · JB 720

A 1960 Aston Martin DB4 carrying only 12,139 recorded miles presents a roadworthiness profile dominated less by wear and more by the mechanical consequences of long periods of inactivity, with a single but serious test failure on 7 May 2026 that was rectified in time for a clean pass on 20 May 2026. The intervening failure flagged two dangerous defects, a fractured nearside front anti-roll bar linkage and parking brake efficiency below 50 percent of the required value, alongside advisories for limited reserve travel in the foot brake, corrosion to the nearside rear integral body structure (specifically the floor) without significant loss of structural rigidity, and wear in the front offside steering rack tie rod joint. The surrounding tests on 15 May 2025, 9 May 2024, and 6 December 2023 all passed without any recorded defects, so the mechanical story is one of an otherwise well-presented classic interrupted by a cluster of age-related and corrosion-driven issues that are entirely consistent with a vehicle of this vintage. The recorded accumulation of 12,139 miles over approximately 66 years equates to an average of around 184 miles per year, a usage figure so low that it is reasonable to conclude the car has spent the great majority of its life either garaged or effectively laid up rather than in regular service. There are no large gaps in the testing history submitted, but the remarkably low annual mileage across the entire period is itself a meaningful indicator for any prospective buyer, because standing vehicles are prone to seized calipers, perished flexible brake hoses,硬化 rubber suspension bushes, flat-spotted tyres, crystallised brake fluid that has absorbed water from the atmosphere, and oil seals that begin to mist or leak once the engine is restarted after prolonged storage. The tie rod wear and parking brake inefficiency recorded in May 2026 are precisely the kind of defects that arise from infrequent use combined with corrosion in the linkage pivots, cables, and drums, rather than from high-mileage wear. For a buyer arranging a physical inspection, the anti-roll bar linkage failure is the priority item, because replacement or repair of that component was completed only days before the re-test and there is no follow-up record yet to confirm the long-term integrity of the rectification. On a test drive, listen carefully for any clonking or rattle from the front suspension over uneven surfaces, particularly small bumps that load the anti-roll bar, and feel for any vagueness or shimmy through the steering wheel that could indicate the tie rod joint has not been properly addressed or has deteriorated further since the test. With the parking brake having recorded less than 50 percent efficiency, the rear brake mechanism should be inspected for seized adjusters, stretched cables, or corroded drums and shoes, and the handbrake should be tested on a steep incline to confirm it will hold the vehicle without excessive travel. Limited reserve travel in the foot brake also warrants a check of the front caliper pistons, flexibility of the servo, and condition of any braided or rubber brake hoses, as perished hoses can collapse under pressure and mimic servo issues on cars of this era. The advisory concerning corrosion to the nearside rear floor structure should not be dismissed simply because the tester classified it as not significantly reducing rigidity, because floor pans on a DB4 are load-bearing in the rear quarters and corrosion in this area can progress rapidly if moisture is allowed to ingress through carpets or boot seals. A thorough inspection should be carried out from beneath the vehicle on a ramp, paying particular attention to the outriggers, sills, jacking points, and the rear spring mounting areas, which are known corrosion hotspots on cars of this vintage. Given the very low mileage, it is also prudent to budget for a full recommissioning of the braking system, replacement of all flexible hoses, a brake fluid flush with a modern glycol-ether fluid compatible with classic calipers, and fresh silicone coolant, as these consumables will degrade regardless of whether the car is driven or not. A pre-purchase inspection by a specialist familiar with Aston Martin DB4 chassis, including borescope examination of the cylinders for bore corrosion from condensation, oil sampling for the straight-six engine, and assessment of the SU carburettors for stuck needles and perished manifolds, would be strongly advisable given the combination of age, low recorded mileage, and the recent structural and braking advisories.