Hello - i've got a 1990 mini city and it has black plastic trims on the seams running from wheel arch to wheel arch. When we got the car the trim was peeling away, so we replaced it and the replacement promptly fell off.
The original seemed to be stuck in with what appeared to be the same stuff you use on licence plates. When I put the new one it, it seemed tight - but obviously wasn't.
So i've got some more (thankfully its not expensive.) But question is how do I attach them so they don't come off? I know the vertical trims (which this care doesn't have) use metal clips.