Car Market!

[KooKoo]

Hello everyone,
I came up with an idea suddenly, why don't we make an area in a corner of a track or somewhere in the track that if we go to its like a car market. What im trying to say is what we if we have a car market where people can go there and put their car on sale with their prefered price and once that car is bought by a customer the money is automatically deposited in the person(s) money or he can manually claim it, even, why not make the market menu pop-up in the car market and also people can buy new/used cars over there or even trade, their preferable choice!
So what do you guys think? Sorry if this idea looks useless but its kind of nice and realistic. I'll try to explain it more if you guys have any questions

KooKoo