why can i only post in this section? i have been a member for 9 days, I have a car i wanna post for trade. why cant i?

 

Because you need to read the rules. You will be able to once you are not a Trial Member.

Edit: Now that you hit the 10-day marker it says you are an Unrestriced User, change your avatar amd you are set. Don't forget that you also need to log into the Marketplace seperately from this site.