If you're looking for one of the best automotive adhesives on the market this is it.

3M™ Panel Bonding Adhesive (200ML applicator gun)
Unused still in the box.

Perfect for sticking any aftermarket Carbon Fibre or plastic body parts onto your VW.
Two-part epoxy used to bond steel, aluminum, SMC, and FRP (traditional fiberglass)

I bought too much and never used this one.

I paid $150. Selling for $100 including shipping to anywhere in Oz.