Maybe show screenshots of your work, unless you made this thread and you haven't started work on the model yet.

EDIT: Also, just know there's already a boatload of CVs as is. https://www.gta5-mods.com/search/crown+victoria

I'm not saying don't do your model, but I'm just saying, from what I can tell, a 2011 Crown Vic is no different from a 1999 version other than maybe the grill, unless someone can point out other details to me that differentiate from one another.