The fourth Lamborghini Aventador SVJ teaser shows the supercar bravely attacking the Nurburgring in a timed lap, and revealing another “best”: the “aerodynamic efficiency”.

Equipped with the Aerodinamica Lamborghini Attiva (ALA), or active aerodynamics in plain English, the supercar appears to have shattered the Nurburgring lap record of the Porsche 911 GT2 RS.

In a report published and removed by AMS, the Lamborghini Aventador SVJ is said to have lapped the German track in 6:44.95. That’s some 2+ seconds quicker than the Porsche 911 GT2 RS, which did it in 6 minutes and 47.3 seconds last fall.

Also Watch: Lamborghini Confirms Aventador SVJ, Teases Nurburgring Lap Record Attempt

In turn, the German supercar stole the crown from the Lamborghini Huracan Performante’s head, which ran the 20.6km (12.8mi) long course in 6:52.01 six months earlier.

Before taking sides, remember that both Lamborghini and Porsche are part of the Volkswagen Group, so this is basically an internal feud, one that led to the development of some of the hottest supercars over the years.

Another thing mentioned by the German publication before removing the report was the Aventador SVJ’s alleged official output: 770PS (759hp / 566kW), or 20PS (20hp / 15kW) more than the Aventador SuperVeloce. The ‘normal’ SV can reach 100km/h (62mph) in 2.8sec, from a standstill, and maxes out at 350km/h (217mph).

With the recent leak and daily teasers, we wouldn’t be surprised if Lamborghini decides to raise the curtain for the Aventador SVJ this week or the next.

Update

Lamborghini has just stepped forward and confirmed the 6:44.97 lap record set in the Aventador SVJ by factory driver Marco Mapelli, during an exclusive session on the Nurburgring.

Mapelli was backed up by the firm’s Research and Development team, and Pirelli technicians were also present at the track. As for the car, it was “fitted with cameras inside and out and full telemetry, under the formal scrutiny of Remak personnel, who managed time and GPS certification using VBOX-Racelogic instrumentation”, according to Lamborghini.

The Lamborghini Aventador SVJ ran on Pirelli P Zero Trofeo R tires, which will be offered as an option alongside the P Zero Corsa.

Elsewhere, the supercar features enhanced four-wheel drive system, rear-wheel steering and Electronic Stability Control (ESC), whereas the steering is said to have been re-tuned. It has a 1.98 kg/hp weight-to-power ratio and the 2.0 active aerodynamics, with aero vectoring, for “the best handling and downforce”.

Lamborghini will pull the cover off the new Aventador SVJ at the Monterey Car Week in California, next month, but in the meantime, they should release the video with the Nurburgring record lap, so watch this space for possible updates.