This teaser video clearly indicates something is up.
We've known Lamborghini is working on what could likely be the last Aventador variant, the SVJ. Based on some previous spy shots and a few other sources, the Aventador SVJ will be the most extreme V12-powered Lamborghini road car of all time. How extreme? Put it this way: Lamborghini is already strongly hinting the Aventador SVJ has already set a new Nurburgring lap time with this just released video. If so, that means it's smashed the Porsche 911 GT2 RS's recent record run of 6:47.25. Ironically, both brands are part of the Volkswagen Group empire. Nothing like some friendly internal corporate competition.
Anyway, details regarding the Aventador SVJ's specifics have yet to be released, but it's fair to assume the following: the 6.5-liter V12 will have a power boost, likely in the 770 hp to 800 hp range. The camouflaged-covered Aventador in this video clearly has additional exterior active aero, like a larger rear spoiler and modified front end for plenty of downforce.
For the best power to weight ratio possible, chances are engineers have come up with weight-saving methods. We also expect to see the rear-wheel steering system from the Aventador S. Lastly, what does the 'SVJ' name mean? 'J' stands for 'Jota', a name first used way back when the Miura was still in production. We expect an official announcement from Lamborghini sometime in the next few days, hopefully this week. In the meantime, enjoy the teaser video.