For the lads with Jeeps and Prados what is tyre life like.
My Kluger has 19" rims/tyres and I can only push them to just over 30,oooklm. One of the guys at work has a VX Prado with 18" rims/tyres and has only put one new set on in 4 years about 75,000klm now and I think he changed them about 55,000klm.
I have just ticked over 30K on my original 20" Kumho's, pretty much suburban and a few country trips. I have also been up in the Vic high country a couple of times along some very rough and rocky tracks, with no chipping evident. This may be just luck but I was very cautious about picking my lines. I reckon I'll get another 15K out of them. Others have reported getting less than 30K, and some getting over 60K, so i guess it all depends on how you treat them, same as with any car and tyre combo.
Depending on which model you go for (18's standard on Laredo, 20's on Limited and Overland) you can option the Offroad Adventure pack which gives you the 18's on the Limited and Overland and then exchange the Kumho's for something like the AT3's or BFG AT etc.
There's not a great deal to choose from in an AT 20" tyre.
I'm in the process of getting a second set of 18's with some AT's or MT's for offroad use, and keep the 20's with decent road tyres for around town.
Another great source of info in an online forum is
www.jeepgarage.org
US based so has a massive following and there is also a dedicated section for export owners, with plenty of us Aussies on it.
http://www.jeepgarage.org/f73/
There is also anything and everything you need to know here..
http://www.wk2jeeps.com/