http://www.haynes.co.uk/inc/viewbook.asp?bt=3925
it tells you in this book.
anyway whatever the offset is, and if the pcd is slightly higher, and i had to use "wobbly bolts," would these bolts effect the handling of the car?
is that caused by the wrong pcd (4x100) or the offset, mind you dont go that fast anyway. although my sx has gone agaist the usual top speed spec of about 83mph, i had 100mph with another passenger. standard engine still too.