The Maserati A6G/54, introduced at the 1954 Paris Show, was the final evolution of the A6 road cars. They were a development of the A6GCS sports racers and was powered by the new two-liter twin-cam straight-six engine installed in a sophisticated chassis with large finned aluminum drum brakes.
The Maserati brothers had sold their company to Omar Orsi in 1937 with the agreement that the brothers would continue to be employed at the company for another decade. After honoring this agreement, they left in 1947 to begin a new company of their own called OSCA. The brothers had left Orsi with the newly designed straight-six engine which had been intended for use in competition but instead was used in Maserati's first Grand Tourer.
The new Maserati was introduced at the 1947 Geneva Motoroshow and was called the A6. It wore a Pinin Farina designed body and powered by the new 1.5-liter, single overhead camshaft engine offering 65 horsepower and backed by a four-speed gearbox. A steel tubular frame with two side members and several cross members were suspended by wishbones, coil springs and Houdaille shock absorbers in the front and a rear live axle with a similar setup.
Sales were dismal due to the high price and poor performance. Learning from his mistakes, Orsi introduced a second version of the A6 at the Paris Motorshow in 1951. The three different styles on display included a Frua Spider, a Pinin Farina Berlina, and a Vignale Coupe. The 2-liter engine with the optional three-carburetor setup offered 100 horsepower, a significant increase from the prior 1.5-liter version.
Again, sales did not meet expectations and only 16 examples were completed. The final evolution, introduced in 1954 and informally known as the A6G/54, was built in much higher quantities with 63 (possibly as few as 60 and as many as 65) examples built in a variety of body styles. The newly revised engine had twin camshafts and plugs and offered 150 horsepower. Coachbuilder who provided bodies include Vignale, Frua, Allemano, and Zagato. The Zagato bodied examples were typically lighter and more aerodynamic than the other bodies and helped carry Maserati to the 1956 Italian Sports Car Championship. Twenty examples were clothed by Zagato as berlinettas and a single example as a spider. Fura built sixteen examples, six were coupes and the rest were spiders, and they were often finished in a two-tone paint scheme with a contrasting hood stinger. The Allemano and Frua designed bodies were often more luxurious and designed for road use, while the Zagato bodied examples were built with competition in mind.
The popularity of the A6G/54 can be attributed to his higher horsepower engine and the many components sourced from the A6GCS competition car, including the race-proven braking, steering, and suspension components. The Gioacchino Colombo-designed all-aluminum twin-cam six-cylinder engine provided performance on par with other manufacturers. Maserati engineer Vittorio Bellentani modified the original design, implementing chain-driven camshafts, wet-sump lubrication, and a revised valve train. Equipped with three Weber 40 DCO3 carburetors, and available with an optional twin-plug cylinder head, the A6G/54 was among the best performing sports cars of its era.
The Maserati A6G/54 was a well-rounded sports car that often excelled in the two-liter GT category, at the Mille Miglia, and in Italian hill climb events. These bespoke grand tourers were among the most luxurious, powerful, and aesthetically pleasing of the 1950s.
by Dan Vaughan