Our spy photographers have managed to capture several photos of the new Porsche 911 GT3 RS as it underwent testing recently, giving us a better look at the facelifted track machine. Unlike our previous sighting, the prototype seen here is wearing a thinner disguise, which allows us to have a better look at the design revisions Porsche have done.

At the front, the 911 GT3 RS gets a new bumper and grille setup, which heavily mimics that on the newly-introduced 911 GT3 from the Geneva Motor Show. Meanwhile, the rear appears to remain unchanged from the current car, with the same bumper and intakes above the engine.

However, as we’ve seen on a covered up test mule before this, expect these features to undergo some revisions before appearing on the finished product. A new rear diffuser and vents on the engine cover are among the changes which should be found on the facelifted car, if the latest 911 GT3 is any indication.

There are rumours that suggests the 991.2-series GT3 RS will come with a larger 4.2 litre flat-six engine as well as an option of a six-speed manual gearbox, although nothing is official for now. The current car is equipped with a 4.0 litre that serves up 500 hp and a torque of 460 Nm, with only a seven-speed dual-clutch Doppelkupplung (PDK) gearbox to transmit power to the rear wheels.

GALLERY: Porsche 911 GT3 RS (991 series) launch in Malaysia