most major events will ask for the MSI or MSA (m'sport irland or m'sporrt association) media pass which is hard to get as you need 4 publications printing your work, 2 of which you have to provide evidence of (ie. post a copy down that has your name in the report as doing wrtiting or photos) then a letter from 1 editor saying that they will be using your pictures on a regular basis and from that you get the media pass enabling you acces to most major events and all the international rallies but for WRC and the likes ya need this plus letter from editor and all as they are very hard to get signed on at!
http://www.msauk.org/uploadedfiles/m...pplication.pdf thats the msa one that the mainland ppl need i think.