GENEVA – Lamborghini CEO Stephan Winkelmann pulls back the cover on the Veneno here on the eve of the opening of the auto show to the media.

Three copies of the spectacular one-off will be produced, with the model billed as both "a racing prototype and road-going super sports car."

The design is optimized for aerodynamics and cornering stability on the track, yet is fully homologated for the road. Its 750-hp engine takes the exotic from 0-62 mph (100 km/h) in just 2.8 seconds, the auto maker says, with top speed held to 220 mph (355 km/h).

All three units, priced at €3 million ($3.9 million) before tax, have been sold to customers.

Part of that high cost is in the carbon-fiber-reinforced plastic used for the car’s chassis and outer panels and the forged composite and carbon-skin material employed inside the cockpit.

In keeping with the tradition of the Lamborghini brand, the car’s name originates from a legendary fighting bull.

Veneno was one the strongest and most aggressive bulls ever. He became famous in 1914, when he fatally wounded star torero José Sánchez Rodríguez during a bullfight in Andalusia, Spain.