Update 10/24/2012: A reader who inspected the car recently noted that this Carrera has a replacement engine.

Posted 10/23/2012: This heavily modified track oriented '74 Carrera 2.7 is available in Austria. Interior has been heavily prepared with racing seats, full roll cage installed, racing wheel, lightweight RS style carpets, RS door panels.  A full repaint was done at some point with a secondary mirror added as well as hood pins holding down the hood. 5,600 km is on the odometer but expect at least another 100k (or two) in real mileage. No mention if original engine is equipped

Description from seller:

Das Nachfolgemodell des legendären Porsche 911 RS in dieses G- Modell wurde die komplette Technik des RS werkseitig verbaut. 2006 wurde dieser 911 von einem bekannten italienischen Porsche Tuner zu einem Rallyauto umgebaut ! Motor und Getriebe wurden 2011 von der renommierten und auf Oldtimer spezialisierten Classica generalüberholt und seither ca. 2.000 km gefahren ! Sportfahrwerk, Waagebalkenbremsen, Sportbremsen, Schaltwegverkürzung, Überrollbügel, Sportsitze, uvm.

Rough translated description:

The successor of the legendary Porsche 911 RS in this G model was built all the technology of RS factory. 2006, this 911 from a well known Italian Porsche tuner was converted to a rally car! Engine and gearbox were overhauled in 2011 by the renowned and specialized on Vintage Classica and since then driven about 2000 km! Sports suspension, balance beam brakes, sport brakes, shifter, roll cage, sport seats, and much more.

Offered for €99,000 (approx. $137k USD).