Lamborghini Huracan STJ is the end of the line for V10 supercars

Production of Lamborghini's Huracán supercar will end at the end of this year, followed by a plug-in hybrid successor that will replace the current car's V-10 with a twin-turbo V-8.

The rugged Huracán Sterrato unveiled last year was considered the final version of the Huracán, but on Wednesday Lamborghini unveiled the new Huracán STJ, marking the end of the line.

The ST in the name refers to Lamborghini's Super Trofeo one-make race series, while the J is a continuation of Lamborghini's tradition of using J in the names of hard-core models. This tradition dates back to the Miura SVJ, a very limited hardcore version of the Miura based on the one-off Miura Iota (Jota is pronounced J in Spanish) prototype developed by Bob Wallace to meet the FIA's auxiliary rule J.

The Huracán STJ is based on the already extreme Huracán STO, which is comparable to the car's 631 hp; like the STO, the STJ is equipped with a 7-speed dual-clutch transmission that sends drive to the rear wheels only.

To boost performance, engineers focused on aerodynamics and chassis. New details include a front flick and a rear wing with a 3-degree steeper angle than the STO. This has resulted in improved downforce at both ends.

The chassis features four-way adjustable dampers that replace the standard active set. According to Lamborghini, these dampers allow the springs to be set softer without compromising handling levels.

Bridgestone Potenza race tires were also newly developed and are mounted on 20-inch wheels with center locks.

According to Lamborghini, these changes have resulted in a reduction of more than one second in laps at the Nardò test track in Italy compared to the STO.

Lamborghini will offer two color combinations for the exterior. One is gray on the body with black, red, and white accents. The other features a blue body with the same black, red, and white accents.

Lamborghini will produce only 10 Huracán STJs. Lamborghini has not indicated whether the car will be sold in the United States.