Agreed^^6 Especially a compound curve, My brother does Vinyl signs,painted signs ect and I learnd that the hardway puttin carbon fiber wrap on my dash. it didn't work. I would suggest an adhesion promoter if your putting it on plastic. some plastics have a oily sheen to them and it won't allow some decals to adhere properly. Clean it good first too.
I tried putting vinyl on my race bike's tail section for number plate backgrounds...there is a concave radius that meets a convex radius then come together and form yet a third radius...I decided to paint them after about ten minutes.
Its a pain in the a## you have to cut and piece it together use a heat gun will help but don't over heat the wrap, get some different size bondo spreaders to help with the air bubbles and a straight pin to perice holes in the air bubbles and press out.
It worked very well. I removed the racks,fenders and seat. Took a while but it sure looked a lot better than the HUNTER ORANGE color it was before. It has been on for 3 years and has faded some. Click on image for a larger size.