I am now an official Vectra C member with a sticker to prove it.
Must admit they are very nice!
Quick snow and clean with a chammy downa nd some fast glass and it was done. The preperation work required to stick a sticker on is daft!!!

I have 2 internal stickers which I didnt plan for being too big for the rear quarters glass. The Vectra-C.Com is visible but not the writing underneath.

Could do with changing for external if anyone wants/has them to swap pm me. I havent removed the paper so brand new