When there is a vehicle suggestion that doesn’t have any images, people are allowed to resuggest it. However, I think this should be the case if a suggestion literally only has a single image of the car, which is bare minimum. It will get people to actually put some effort into a suggestion. It really sucks when you want to suggest a car and it got taken by someone who used a single image. Even if it was just a few specs, or an informative description, then that post should be fine, since that indicates the user took some effort to put it in. Also, a post having multiple images from many different angles but no specs would be fine.
In summary, please make it so users can override a sloppy car suggestion, which can be defined by a post with a single picture and nothing else. It can be bothersome when your favorite car was taken by a post like this.