I think they are more usually seen on ZX's. I wasn't aware that there was any difference in shape between the solid and vented wheels. Sigh
Mark.[/quote]
I think the problem is not so much the difference between solid and vented steels as my trims fit both, but that the GTi steels whether vented or solid are a different dish hence your trims won`t fit. I`ll bet the GTi wheels are wider and the dish is deeper or shallower.
Tough call now: either fit (narrower) standard wheels and your new trims, leave it trimless, get some after market trims which may/may not fit or buy a set of alloys.
The ones on offer for £20 seem very fair to me.
Vauxhall apologist.