Price On Request The Aston Martin DB4 was first unveiled at the 1958 London Motor Show, to rave reviews of the public. The car proved to be a significant achievement for the then small British manufacturer. The monocoque punt-type chassis, developed under Harold Beach, featured coil-over A-arm front suspension with an anti-sway bar and a live rear axle, which was located by trailing arms and a proper Watts linkage, as well as coil springs. The coachwork utilised the vaunted Carrozzeria Touring process, in which a skeleton of small-diameter steel tubing supported the all-alloy body panelling, which created a very light yet rigid structure. Although styled by Touring, the DB4’s sleek fastback body was actually produced by Aston’s own highly skilled panel beaters in Newport Pagnell.The 3.7 L engine, designed by Tadek Marek, a Polish born race driver, was a rugged double overhead cam straight-6, with cylinder head and block of cast R.R.50 aluminium alloy, a further development of the earlier engine used in the DB3. The twin-SU carburettor version was capable of producing around 240 hp at 5,500 RPM. This engine would enjoy a decade-long life as the motive power for the the DB4-, DB4 GT-, DB5-, and DB6-series Aston Martins. The lightweight, alloy-cased, four-speed synchromesh gearbox was an in-house design that had been built by David Brown’s gear and machine-tool division. Four-wheel disc brakes by Dunlop or Girling, depending on the model, provided immediate stops, especially when compared to the old DB2 series’ original drum brakes. The normal final-drive ratio for British and European use was 3.54:1 in the United States the ratio was usually 3.77. Customers wanting a car with an especially high top speed could choose an optional 3.31:1 ratio.Throughout is lifetime there were five series of the DB4. The most visible changes were the addition of...