Custom Vehicle Images after Update on Experimental

Hey. so i don't usually post on the forums so sorry if this is posted in the wrong area

I was wondering how i would set a image for Vehicles ive downloaded so they have an image of the vehicle when you hit ctrl + space.
i copied the files i thought i needed from the .zips in content>vehicles>moonhawk.zip>vehicles> Copied files default.png and info.json

ive edited the info.json file to the statistics of my car

then those 2 files where copied in that vehicles root folder in the vehicles folder.
but when i launch the game the vehicle i thought i assigned an image to didn't have one and BNGD didn't seem to recognize the info.json file.

if someone could explain how to assign images and link me to a thread that explains it.

thanks