About the Argentinian round. At Cordoba and Misiones there's room for dirt sections:
http://www.youtube.com/watch?v=An8TfjdpGc4
http://www.youtube.com/watch?v=ZSSyVu4wWb4
But first see than believe. For a couple of years there was scheduled a WTCC event in Argentina but until this year every time it was cancelled.