The current 911 GT2 RS, as Porsche is keen to stress out, is the most powerful road-going 911 ever built. It also set the fastest rear-wheel drive production car record around the Nurburgring, so it’s the real thing on the track, too. But this video by 19Bozzy92 makes it look like Weissach is working on something even faster.

Porsche’s already worked its magic on the 911 GT2 RS, fitting all types of scoops and intakes, plus a large rear wing. Additionally, customers that want even more performance on the track can opt for the Weissach package. It’s pricey at $31,000, but adds even more carbon fiber, 20- and 21-inch magnesium wheels front and rear respectively, and a bunch of other lightweight components.

While the GT2 RS is already a track-focused machine, it looks like the automaker could be working on something that’s specifically meant for the track, as this footage of a hardcore 911 testing at Monza shows.

Porshce 911 GT2 RS Prototype

As Australia’s Drive reports, Porsche booked a test day at Monza last month to test various track vehicles. Some of the cars on hand included a 718 Cayman GT4 Clubsport, 911 RSR, and 911 GT3 R. So while it’s possible for the automaker to be testing another 911 race car, it doesn’t look or sound like one.

At first, you assume it’s a 911 RSR racer, buy although it may look like a race car, it’s not nearly as loud as one.This GT2 RS sports front canards, larger intakes on the hood, an even larger rear wing and a redesigned rear end.

It’s possible that Porsche could be testing a vehicle for a track-only program like Ferrari has with the FXX K or McLaren with the new Senna GTR. So, while we can’t be 100 percent sure what this particular 911 is all about, it sure is fun to watch it lap the Italian circuit.