0.7 mm VHB, no vinyl, straight on the paint. The tape is run along the entire outside edge of the panels to hold them completely flat against the hood. I also added two strips in the middle to hold it away from the paint a bit and prevent rubbing in the center (sorry no install pics). It is entirely more than I need to hold them in place (VHB is insanely strong stuff) but it's best to run it entirely around so there's no gaps. I've worked quite a bit with VHB so I'm not afraid of the removal process if I do ever need to pull them off, already did it once with these as I wasn't entirely happy with my first shot at placement. VHB removal is not what I would describe as a good time but as long as you're patient and let the adhesive remover do it's thing it's pretty straightforward. If I was planning on selling ever I might have wrapped it first but idc, this thing was pretty pinstriped already, not that it really shows in the pic.