Judging by these spy photos, McLaren is apparently already working on a limited edition of its recently launched P1 supercar.

Judging by these spy photos, McLaren is apparently already working on a limited edition of its recently launched P1 supercar.

McLaren unveiled the P1 back in March at the Geneva Motor Show and now they are testing what appears to be a special edition internally codenamed "XP2R". This new variant is likely to come out in 2014 and will get a different more catching nameplate. The prototype was spotted testing at the Nürburgring before pulling over at the nearby gas station for a refill. Behind the wheel was McLaren's chief test driver Chris Goodwin.

The sticker on the car said "XP2R Prototype Vehicle" but that doesn't reveal any details about what will change. While the "standard" P1 has a combined output of 916 HP (674 kW), this special edition will probably get closer to the 1,000 HP (735 kW) mark by uprating the twin-turbo V8 3.8-liter gasoline engine and also by tweaking the electric motor (Instant Power Assist System - IPAS).

Expect a limited series of probably five to ten units, each priced at close to 1M GBP since the standard McLaren P1 kicks off at 866,000 GBP.