1971 Pontiac Grand Prix 6.3L Petrol · MLB 1L

Extremely low annual usage defines the operational history of this vehicle, with the MOT record showing a relatively stable pattern of roadworthiness over the last decade. While the most recent test on 24 June 2017 resulted in a pass with no defects, the history includes a failure in June 2015 involving both parking brake efficiency and dangerous stop lamp failures, alongside a recorded exhaust gas leak advisory in 2014. The trend suggests that while the vehicle has maintained its basic compliance, it has experienced specific issues regarding braking performance and lighting systems that required rectification. The recorded mileage of 16,465 miles against a 55-year age profile indicates an average annual accumulation of approximately 299 miles. This exceptionally low mileage suggests the vehicle has spent significant periods stationary rather than in regular service. Mechanically, such a usage pattern means that while drivetrain and engine components may show minimal wear from friction, other systems such as rubber seals, suspension bushes, and various fluid-carrying components may be subject to degradation from age and lack of movement rather than physical wear. Prospective buyers should pay close attention to the braking system, specifically the parking brake, given the previous failure for insufficient efficiency. During a test drive, it is essential to verify that the handbrake holds the vehicle firmly on an incline and that the brake pedal feel is consistent without any sponginess or excessive travel. The 2014 advisory regarding a minor exhaust gas leak should also be investigated; listen closely for any rhythmic ticking or increased engine noise while the vehicle is idling or under acceleration, which could indicate a failing manifold gasket or a breach in the exhaust system. Given the long-term stationary nature implied by the mileage, a thorough inspection of all electrical connections and lighting assemblies is necessary to ensure the stop lamp issues recorded in 2015 do not recur. Additionally, because low-mileage vehicles often suffer from perished rubber components, check all suspension linkages and fuel lines for signs of cracking or stiffness. Any signs of fluid weeping from seals or joints should be noted, as these are common symptoms when a vehicle has not been operated regularly to maintain pressure and lubrication within the various systems.