Lamborghini Diablo GT Prototype
The Diablo SE30 and its optional Jota upgrade kit had been quite sporty and race-oriented, but Lamborghini took this concept a step further in 1999 with its introduction of the very limited production Diablo GT, of which only 80 examples were produced for sale. The Diablo GT was a completely race-oriented model differing in nearly every aspect from the more mainstream Diablos. The cars were fitted with radically altered aggressive bodywork, a stripped-down interior, and an enlarged engine. With the exclusivity came a large price tag of nearly $300,000 and availability limited to Europe. Some GT models were imported into the US and a few may have been converted to road-legal US specification.
The Diablo GT was noticeably different on the exterior. While previous Diablo models had differed one from another with subtle fascia refinements or changes in the brake cooling ducts, the Diablo GT opted for an all new black carbon fiber front air dam with large brake ducts and a central vent for the oil cooler (the car still featured driving lamps, the single pair of round units featured on the Diablo VT Roadster). In the front luggage compartment lid, a large air extractor was added, while the small corner vents on the front fenders were changed to NACA style ducts. The fenders themselves were widened to accommodate a wider front track. In the rear, the bumper and its lamps were removed entirely, replaced by a carbon fiber diffuser that forced the fog and backup lamps into the outer pair of tail lamps, and shielded a pair of large center-mounted exhaust pipes. The engine lid featured a large central ram air duct protruding above the roof; a rear spoiler was standard equipment. This radical new body was composed mostly of carbon fiber, with the steel roof and aluminum doors being the only components to retain their standard material. Special 3-piece OZ wheels finished the GT's exterior package.
On the inside, the Diablo GT featured more prominent carbon fiber panels, race-spec bucket seats with 4-point seatbelt harnesses, a smaller steering wheel, and an optional Alpine LCD screen for GPS navigation and a bumper mounted backup camera. Despite the racing pretenses of the vehicle, air conditioning was still installed as standard equipment; airbags could be optionally omitted.
While previous Diablos had tuned and tweaked the 5.7 L (348 cu in) engine with various ignition and fuel system upgrades, the Diablo GT opted for a larger-displacement alternative. While the basic V12 block remained the same, the engine was stroked from 80 mm (3.1 in) to 84 mm (3.3 in) for a new displacement of 6.0 L (366 cu in); this engine, which would later be used in the revised Diablo VT 6.0, produced (in GT trim) 583 PS (429 kW; 575 hp) and 630 N·m (465 lb·ft) of torque. The transmission was the same 5-speed used in other Diablos, but different gear ratios could be specified by the race-oriented buyer. Rear-wheel drive was used to save weight, as usual.
Source: Wikipedia, 2012