In late 1999, at the Bologna Motor Show, Lamborghini presented the Diablo GT-R, the race-oriented variant of the GT. Limited to only 30 units and never legal in the United States and Japan, this car was prepared to compete in the Lamborghini Supertrophy, organized by the Stephane Ratel Racing Organisation.
The Diablo GTR was designed with racing at its core. A fully integrated roll-over cage, a massive rear wing bolted directly onto the lightweight chassis, and full Brembo race specifications on the brakes with Lucas-controlled ABS ensured that this car was built to perform on the track.
The 6.0-liter unit mounted behind the driver had been the single most powerful motor the company had ever produced, with 590 hp, 40 more than the previous pinnacle reached in the SVR. As a result of this and various other upgrades, the Diablo GTR was able to attain a top speed of 210 miles per hour.