Tank Tracks for the IO!
Guys... Wouldn't it be excellent..... If these track adapaters could be fitted to an IO :P
Mattracks
These guys have probably never heard of a Mitsubishi Pajero iO, but, if they can be fitted to a Suzuki Samurai, I don't see why they wouldn't work on an iO. As I understand it, fitting Mattracks is essentially as simple as removing your road wheels and bolting the Mattracks to the hubs - you may need to trim or lift for clearance, just as with any "larger rubber"
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From the look of it the setup isnt too complex....
From that video I found this though, super cool - http://www.youtube.com/watch?v=jE4kqBT8dWo