The Aston Martin Lagonda Series 4 represented the final evolution of the wedge-shaped Lagonda before production ended in 1990, sitting at the close of a lineage that had begun with the Series 1 in 1974. Like its predecessors, it retained the Lagonda's long-running 5.3-litre V8 engine derived from Aston Martin's core powertrain, paired with a three-speed automatic transmission. The Series 4 brought refined updates to the car's distinctive William Towns-designed bodywork and its famously complex digital instrumentation, which had been a defining and often troublesome feature of the model since the Series 2. With overall Lagonda production limited to 645 units across all generations, the Series 4 remains a collector-significant endpoint for one of the most technologically ambitious British luxury saloons of its era.