Think the metal ones are bonded onto the sills.
The plastic ones fit into the cars bodywork.
You then slide the sills onto the plastic clips.
Well that what it looked like when I pulled the sill away!!!!!!!!!!!!!
I'll bring some of my metal ones up tomorrow so that its easier to see, whats, what!!
If Ziggy has bought the sills, are the metal brackets still bonded on.
This is all on my Mk2, dont know if the Mk1 would be different.