How did you end up mounting / attaching the rear spoiler.?
Well... After 10 min the 'problem' was solved in really simple way.
I used 3 pieces of clay and placed them on spots where wing should be mounted with bolts.
Firm press and marks from wing holes on clay were visible. The rest is history. Almost!
On the whole upper side area I used Black Sika silicone to fill the gap - looks better, no water leak,... Now the wing would stay even if I remove all 3 bolts. You can see some black silicone on first pic.
From normal looking distance looks perfect. Now I'll just attach 3 rounded black vinyl circles on inside holes - pure cosmetic, nothing more.
