Aston Martin DB4 GT Saloon Touring Superleggera Lightweight LH

Car producer : 

Aston Martin


DB4 GT Saloon Touring Superleggera Lightweight LH





The DB4 GT was a special lightweight, high-performance version of the DB4. Introduced in September 1959, the GT's featured enclosed headlights and a thinner aluminium skin for lighter weight. The wheelbase was also reduced in comparison to the standard car, which resulted in many cars not being fitted with rear seats.

The engine, though, was what made the GT special. Available in 3.7 L (3670 cc/223 in³) and 3.8 L (3750 cc/228 in³) versions, the GT's engine had twin sparkplugs per cylinder with two distributors and three twin-choke Weber carburettors. Modifications to the cylinder head brought compression to 9.0:1 and power output was 302 hp (225 kW). Maximum speed for the GT was 151 mph (246 km/h) with a 6.1 second sprint to 60 mph (97 km/h).

Seventy-five GTs were built with this body style. Nineteen more were modified by the Zagato works in Italy into DB4 GT Zagatos, with plain oval grilles, sans the stock GT's tail fins, and a smoothed out rear end. A single car was also styled by Bertone and dubbed the Bertone Jet.

There were also nine factory Lightweight, produced in various versions under the watchful guidance of Aston development chief John Wyer, later of GT40 and 917 K fame. These cars shared the stock DB4GT’s shortened 93-inch frame, aluminum bodywork, and high-compression engine with three Weber carburetors, all crafted specifically to contend with the Ferrari 250 GT SWB in competition. They improved upon these specifications, however, in being more featherweight still, with a body of even lighter-gauge aluminum (now including the floorboard), roll-up Plexiglas windows, and drilled suspension brackets, all of which eliminated about 150 pounds and made the car an almost perfectly even power-to-weight match for the 250 GT SWB. It was a case of perfectionist engineers admirably taking a second look at a car that was “more than good enough,” and making it fight its strongest competitor at literally equal weight.

The Aston Martin DB4 GT Zagato was introduced in October 1960 at the London Motor Show. It was effectively a DB4 GT, lightened and improved by the Zagato factory in Italy, by Ercole Spada. Initially the factory had plans to produce 25 cars, but demand was not as strong as expected and production ceased at the 20th unit.

Although the specification of the engine was changed and upgraded throughout their racing history, the Zagato predominantly featured a 3.7-litre, aluminium, twin-spark, straight 6-cylinder engine. With a more powerful 9.7:1 compression ratio when compared to the DB4 GT engine.

The engine produced 314 hp (234 kW), a 0 to 60 mph (97 km/h) acceleration of just 6.1 seconds and a top speed of approximately 154 mph (246 km/h).

Ercole Spada at Zagato transformed the DB4 GT into a smaller, more aerodynamic, super lightweight car. Many steel components were replaced by aluminium counterparts. Basically all non-essential elements disappeared, such as the bumpers. With the help of Perspex and aluminium components, more than 100 pounds (45 kg) was shed off the DB4 GT.

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