I've just purchased a 2010 RRS TDV8 and am watching this discussion too. I currently have 275 40 r20 tryres and keen to get some ATs. I have been round a number of tyre places and they say they won't fit 265 50 R20s because its not the tyre listed on the tyre sticker on the door (therefore they say unroadworthy and insurance void). Just wondering if this is correct? I am in Victoria (and also need to get a rowdworthy done with some new tyres).
Thanks!