After campaigning the Diablo SV-R for four years in the Diablo Supertrophy
 Lamborghini launched a completely new car for the 2000 season. This Diablo GTR
 is a modified version of the 6 liter GT version of the Diablo launched in 1999. In
 comparison with the Diablo GT, GTR most important features are a modified
 chassis frame with integrated roll bar, improved suspensions, central fixing
 nut for the rims, race braking system, additional radiators for transmission oil
 cooling, very high performance rear wing (directly bolted to the chassis), simplified
 interiors and weight reduction. The engine is basically the same V12, 6 liter, of the
 Diablo GT which thanks to the adoption of a specially tuned exhaust system,
 without catalyser, delivers 590 hp (575 in the GT model).
 
   For the engine cooling, two water radiators in parallel are side mounted to the
 engine and an engine oil cooler is front mounted as in the Diablo GT. Additional
 coolers for gearbox and differential oil are installed in order to better match the
 racing overloads.
 
   The transmission is on the rear wheels through a Lamborghini 5 speed gearbox
 with one basic gear ratio option and an alternative option for a shorter 5th gear
 ratio. The gear box lever is in an asymmetric position on the central tunnel in
 order to be closer to the steering wheel, for better control. The steering system is
 power assisted.
 

   The tubular chassis frame integrates the roll bar and is directly connected to the rear wing. The front suspension is modified for racing.
 Shock absorbers and anti-roll bars are adjustable. The rims are lightweight magnesium alloy with central fixing nut and they accept racing
 type tires. A special racing fuel tank with fast filling system has been installed. The braking system is based on the Diablo GT high
 performance module. New racing brake calipers have been adopted to better match the very severe racing conditions.
 
   Most of the body is carbon fiber made, except for the roof, which is made of steel for torsional rigidity, while the doors are made of
 aluminum, for safety reasons.

   The cockpit fittings are simplified to meet racing requirements. The driver seat has been moved towards the longitudinal axle of the car,
 reducing the size of the central tunnel, to ensure a better driving position. Racing switches for ignition and for other functions have been
 adopted instead of the series push buttons. The fire extinguisher system is installed on the right side of the cockpit with activating switch
 on the tunnel. The driver's seat is of racing type with a six-point safety belt and the steering wheel is also racing type.
 
   A production run of 30 cars was planned at the launch of the car at the 1999 Bologna Motorshow, but at the end of the run 40 cars
 were built.

   Special features of the GTR engine, common to the GT, are:
  - multi-throttle intake manifold with individual intake system
 - variable intake valve timing system
 - dynamic air inlet duct upstream of the intake plenum
 - titanium connecting rods and lighter crankshaft

   Unique specifications of the GTR engine are:
 - improved exhaust system designed for racing
 - special calibration of the engine management system.
 
 The tubular chassis frame integrates the roll bar and is directly connected to the rear wing.

 Lamborghini Official Website
 Vici Racing Official Website