When I'm not sure of make and/or type of a car, I upload it as 'unknown'. Other people can identify it then. Sometimes it's changed within the minute by someone. That's no problem, but can I do that when I'm sure of an 'unknown' make and/or type uploaded by someone else? Or must the person who has uploaded the car change it?

Now, a car is even a couple of minutes/hours in the unidentified-list. It might be useful for other visitors of the site to learn from the comments. Or not?