Lamborghini Diablo GT

In 1999, Lamborghini fans got a pleasant surprise when the Diablo GT was revealed at the Geneva Motor Show. It combined the modifications of the GT2 race car with the outrageousness of the Diablo to offer serious road racing performance. So much so, it remains as the fastest road-going Diablo ever made by the factory. At the time of delivery in September 1999, the Diablo GT was also one of the fastest supercars as well, reaching a top speed of 215 mph (346 kph).

What set the GT apart from the Diablos before it was a comprehensive list of upgrades which included a larger V12 engine and a radical carbon fibre body. This meant the GT was lighter, faster and had better road-handling than all other Diablos.

Much of the GT's diet can be attributed to its extensive use of composite materials including bodywork fabricated almost completely of carbon fibre. The only non-composite panels were the steel roof and aluminum doors.

Particularly distinct was the front bodywork which accommodated a wider track, brake cooling ducts and a front-mounted oil cooler. Air entered the oil cooler from the very front of the car and exited via an extractor atop the bonnet. A large engine scoop also sat atop the engine cover feeding the V12 with fresh air. Unlike the SV, airflow for this scoop was dynamically controlled by the on-board computer.

Paramount to the exclusive peroformance of the GT was the larger engine which used a 4mm longer stroke to add 5% more displacement. With a new individually throated intake system, a reworked exhaust, titanium connecting rods and lighter crankshaft, 25 additional horsepower was realized.

Inside, the GT was appointed heavily with carbon fibre and leather. Each came standard with racing seats, four-point seat belts and amenities such as air conditioning and power windows. An optional wing-mounted camera system was available to assist with parking.

Only 80 examples of the GT were constructed, each in either orange, titan-silver, black or yellow bodywork. Depending on the customer's use, each came with custom ratios, the longest of which offered a top speed of 215 mph.

engine	60 Degree, Aluminum Alloy, V12
position	Mid Longitudinal
aspiration	Natural
valvetrain	DOHC, 4 Valves per Cyl w/VVT & VIS
fuel feed	Fuel Injection w/Variable Intake
displacement	6496 cc / 396.4 cu in
bore	88 mm / 3.46 in
stroke	86.8 mm / 3.42 in
compression	11.0:1
power	477.3 kw / 640 bhp @ 8000 rpm
hp per litre	98.52 bhp per litre
bhp/weight	384.38 bhp per weight
torque	660 nm / 486.8 ft lbs @ 6000 rpm
redline	8000
drive wheels	Permanent 4WD w/Viscous Traction
body / frame	Carbon Fibre Body over Tubular Steel Frame w/Steel Roof
front brakes	Carbon-Ceramic Discs w/Power Assist, 8-Pot Calipers, ABS, DRP
f brake size	380 mm / 15.0 in
rear brakes	Carbon-Ceramic Discs w/Power Assist, 4-Pot Calipers, ABS, DRP
r brake size	355 mm / 14.0 in
front wheels	F 45.7 x 21.6 cm / 18.0 x 8.5 in
rear wheels	R 45.7 x 33.0 cm / 18.0 x 13.0 in
front tire size	Pirelli P Zero ROSSO 245/35ZR18 Pirelli P Zero Rosso
rear tire size	Pirelli P Zero ROSSO 335/30ZR18 Pirelli P Zero Rosso
steering	Rack & Pinion w/Power Assist
f suspension	Double Wishbones w/Coil Springs, Gas Pressure Dampers, Anti-Roll Bar
r suspension	Double Wishbones w/Coil Springs, Gas Pressure Dampers, Anti-Roll Bar
weight	1665 kg / 3671 lbs
wheelbase	2665 mm / 104.9 in
front track	1635 mm / 64.4 in
rear track	1695 mm / 66.7 in
length	4610 mm / 181.5 in
width	2058 mm / 81.0 in
height	1135 mm / 44.7 in
transmission	6-Speed Manual
gear ratios	3.091:1, 2.105:1, 1.565:1, 1.241:1, 1.065:1, 0.939:1
final drive	2.53:1
top speed	339.6 kph / 211 mph
0 - 60 mph	3.3 seconds

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