[PERP] Adding more cars

Can anybody help me add more cars? Such as all of TDM’s cars.

Add me: http://steamcommunity.com/id/CaptainBlooified

I am looking for the same thing, but instead its for my DarkRP server, I want it to either be sold by an SNPC or from the F4 menu, any you only need to buy it once, but if you need to buy it every time you join that will be okay too, but I would like one time buy only. Just provide me with a link for a download for this or something, I have tried adding it myself, but it wont even show the cars in the spawn menu or the F4 menu.