Vitara wheels are the same stud patern. Think the wide boy wheels would be too much for the wheelarches, and off road tyres that wide wouldn't be much good anyway (tend to flout on top of mud, instead of digging in, and waiding through).

Any veiws expresed in this thread by me are purely from my own experience, and (sometimes) falible memory. Hope my comments help, but please don't take them as gospel.