Commonly referred to as the A6G/54, it was equipped with a completely revised engine, which now featured twin camshafts and plugs. This engine was directly derived from the Maserati single seater and sports racers and produced a more competitive 150 bhp. Another great help was the availability of much better looking bodies from Frua and Zagato. Especially the lightweight Zagato bodies were commercial and aesthetic success. Production lasted for three years and 63 cars with a wide variety of body styles. It was replaced by the 3500 GT, which was more or less a production car, ending a decade of custom Maserati Grand Tourers.