I was thinking, though, it could be a sort of a brandable; also when people buy they normally buy one car so I figured out they might have searched financed car not cars
The phrase in your domain is awkward alone. If someone used it in a sentence like "John got a financed car." it works a little better but it is still not a common way for people to use it. People would more often say "John financed his car." You need to change the verb tense and / or add a word to make the domain less awkward (but of course most of those options cannot be hand registered).
Putting the phrasing issues aside, the plural version is superior to the singular version in this case in my opinion because it sounds more like a real business (financed cars).
The other issue is exactly what business would use this domain. Cars.com would sell cars and CarFinancing.com would sell car loans; so Financed/Cars would finance the cars they sell?
I just wanted to share my thoughts on the domain and will let others attach a value to it.
Well in my mind it was more a website where you could find info on how to finance a car ( like the best loans for example ) or on how to resell a financed car etc and as I said before I thought it could have been used as a sort of a brandable.
It could be turned into the " go to " website for every info about financed cars!.
Then I certainly agree that there are better word combinations but they probably cost xxxx if you are lucky
Like many domains these days, I think the value is created almost entirely from what someone builds on it. I could imagine a used car dealer using it for cars they are selling with financing. People with money and credit will go directly to their bank or credit union for financing. Those without credit show up at the car lots with signs like "We finance everyone!" or "The walking man's friend". With 10 years experience in the sub-prime lending business I have a hard time imagining how a site based on this domain would attract visitors.