Modify my site to sell cars

I own the website [login to view URL] which i designed myself. It's a site that give information on cars but lately, I have been wanting to include on a page in my site a marketplace where people in my country can register and list their 4x4, sedans, bike, boats for sale. It should also have a query for make, model, trim, year. Seller should be able to provide information about them like; if they are a dealer or a private seller, and information on the car; make, model, year, engine size; I4, V5, I6, V6, V8, W12, KM driven, Engine Condition; naturally aspirated, Turbo charged, Supercharged, condition of the car; used/new, picture of the car (5 max), warranty, asking price, contact details, other information. Every entry should have a reference number generated. If you can make it happen for me, a reference of what I am expecting should look like [login to view URL]