PFunk said:
Most cars on the road have 4 studs, fancier or higher performance ones tend to have 5 studs.
Unfortunately they don't all have the same offset (which is the size you need to worry about).
You can enquire at dodsons http://www.dodson.co.nz/enquiry.php to see if they have a suitable wheel - they'll know what you need

pretty much this, its better to get an actual wheel and tyre if you can be bothered because its safer and gives you the piece of mind, especially if you;ve gone on holiday, space savers on the other hand are pretty much ok and long as you drive carefully under 80kmh and keep the driving to a minimun till ya fix it, dodsons should be able to help

easier to get someone who knows to sort u out