finished in black exterior colour and with the Centurion logo on the headrests and instrument panel. The engines available were the standard 4.2-litre and 4.7-litre V8. A special edition of the Quattroporte GT S was introduced at the 2010 Geneva Motor Show: the Quattroporte Sport GT S Awards Edition, celebrating the 56 awards received by the fifth generation of the Quattroporte in just six years since its launch. Its unique specification consisted of "Nero pianoforte" or specially-developed pale gold "Quarzo fuso" pearlescent paint, satin grey wheels, polished brake callipers and all chrome trim in a dark finish. Sales Specifications The Quattroporte's body is a steel unibody, with an aluminium boot lid and engine bonnet; the coefficient of drag is . Front and rear aluminium subframes support the whole suspension and drivetrain. A 47%/53% front/rear weight distribution was achieved by setting the engine behind the front axle, inside the wheelbase (front-mid-engine layout) and the adoption of a transaxle layout. With the later automatic transmission - fitted in the conventional position en bloc with the engine - weight distribution changed to 49%/51% front/rear. The suspension system consists of unequal length control arms with forged aluminium arms and hub carriers, coil springs and anti-roll bars on both axles. Transmissions The DuoSelect transmission available at the launch of the fifth generation of the Quattroporte was a development of the Cambiocorsa unit first used in the Maserati Coupé and built by Graziano Trasmissioni. It was a Ferrari-based automated manual transmission, mounted at the rear axle in the block with the differential in a transaxle layout, with the twin-plate dry clutch located in a bell housing attached to the rear of the engine. A torque tube joined rigidly together the two units. Gear shifting was done via the standard paddle shifters behind the steering wheel; there was no gear lever on the centre tunnel, but rather a small T-shaped handle used to quickly engage first gear and reverse when maneuvering at slow speed. The 6-speed torque converter automatic transmission was a 6HP26 supplied by ZF Friedrichshafen. Unlike the DuoSelect, it was placed in the conventional position right behind the engine; to accommodate it and the new rear differential the front and rear subframes as well as part of the transmission tunnel had to be redesigned. Manual shifting was possible by the centre-console mounted gear lever; in addition, Sport GT cars came equipped with paddle shifters as