The 2006 International Rally Challenge was the inaugural season of the rallying series, which was renamed to the Intercontinental Rally Challenge for 2007 onwards. The season consisted of four rounds and began on May 26, with the Zulu Rally South Africa. The season ended on September 16 with the Rally Sanremo. Giandomenico Basso won the title with Fiat Grande Punto Abarth S2000 ahead of Alister McRae and Paolo Andreucci.
| Key | Colour | Result | Gold | Winner | Silver | 2nd place | Bronze | 3rd place | Green | Points finish | Blue | Non-points finish | Non-classified finish (NC) | Purple | Did not finish (Ret) | Black | Excluded (EX) | Disqualified (DSQ) | White | Did not start (DNS) | Cancelled (C) | Blank | Withdrew entry from the event (WD) | |