It's metallic, I tried 3M adhesive remover, also some citrus products but has no effect on this sticker.

 

WD-40?

 

Peel off the sticker as best as possible, then use goo-gone. After, wash you car.

 

how about a blow dryer

 

+1 with mr DD. blow dryer till the sticker gets soft. it may be metallic looking but its just plastic. it'll soften and come off with heat. it'll leave residue and you can get that shiet off with a blow drier. make sure you get that aaa sticker off it looks janky