Aigner, from Austria, will compete for the Stohl Racing team on 55esimu Giru di Corsica - 55éme Tour de Corse, GEKO Ypres Rally, Sibiu Rally Romania, Barum Czech Rally Zlín and the Cyprus Rally. The 27-year-old’s Subaru Impreza R4-specification WRX STI will use Michelin tyres.
Nikara, 25, will tackle 55esimu Giru di Corsica - 55éme Tour de Corse, Rally San Marino, Rallye Sanremo and the Cyprus Rally in a Tommi Mäkinen Racing-prepared Impreza running on Yokohama tyres.
Legendary Japanese driver Toshi Arai will also compete in a Subaru-supported Impreza as he bids for back-to-back IRC Production Cup titles. Currently Arai’s schedule for 2012 remains unannounced.
A statement from Subaru’s competition arm STI read: “With these three drivers Subaru will be looking to achieve good results in the 2012 IRC and aiming to prove the competitive edge of the Subaru WRX STI to motorsport competitors around the world.”