In many ways, the DB4 is the model that foretold Aston Martin’s future.

Introduced in 1958, the saloon was entirely new from the ground-up; a newly designed platform chassis was fitted with all-round disc brakes, and the famous engineer Tadek Marek designed an all-new six-cylinder engine.

All this was housed in a stunning saloon fastback body penned by Touring of Milan; it was this styling that would set the scene for Aston Martin for many years to come.

As the years progressed, Aston Martin continued to refine their star model; aficionados have separated the model into five distinct series.

Upgrades to successive series included subtle body modifications including recessed rear lights, a lower bonnet scoop, and a new grille with vertical bars, in addition to the resolution of mechanical issues such as engine overheating.

Perhaps the most notable change was in 1961, when Aston Martin allowed customers to specify the Special Series, or “SS”, engine.

This engine, as seen on the DB4...