Rumors of a high-po track version of the capable Pagani Zonda have materialized as true today in the form of official looking pics and info on the Swedish website Sportbilen.se. No translating utility we could find was able to decipher the site's cryptic native language, but we've picked out what we can and combined with knowledge from elsewhere on the net can tell you that the Zonda R will feature a 750bhp V12 engine likely sourced from Mercedes that also produces 523 ft-lbs. of twist. The current king of Pagani's stable is the Zonda F, which produces 594 hp in stock trim from a Mercedes 7.3L V12. From the pictures it is also clear that the Zonda R will be longer and lower than current models and be fitted with a number of aero enhancements to keep it sucked to the ground at high speeds. Chances are it will probably lighter, as well.
Clearly the Zonda R takes after such exclusive track cars as the Ferrari Enzo FXX and Maserati MC12. It will likely be produced in numbers even more limited than a standard Zonda and purchasing probably comes from invitation only. Street legal? Not likely.