...correct, I know the size of tire, I got that off my cars tire itself. Also I think the Vibe is a Matrix.. But in this case we're talking about rims, and some cars do have the same sizing for rims.the specs of the tires and wheels appear to be identical. However when I went to that bolt pattern site
http://boltpattern.net/Pontiac_Bolt_Patterns.htm , they say the only discrepancy is the O.E. Wheel size. But that is only what I got from that site, and I don't quite understand what the number for OE Wheel size means (for Vibe it is 14x6)All the other specs are the same:my current aluminum rims are 5x100 and 57.1.(the ones from the sunfire are also 5x100 and 57.1)the rubber (all-season) on my vibe is 205/55R16.(the rubber on the sunfire ones is also 205/55R16).