....I've finally found some side reps that I'm happy with
I must have tried just about every make of Mk4 tinted ones I could find, plus some vectra B's and a few Mk3 Astra ones too. All have been pretty poor quality, either in materials or build.
Even so, these needed modding before they went on the car - which consisted of sanding off all the embossed writing and polishing back up again and making some custom gaskets to go undeneath, as the supplied ones were the wrong shape .
But, I got there in the end and the search is over