Thanks Grusha, I have a few more questions to ask, please
1) the page detail of a car is modular? Can I choose which modules to display?For modules i mean Detail module, Seller information, Mortage calculator, Map ecc..
2)Can I hide, in frontend editor, predefined fields that i don't need?
3)Can i choose which field must be required (*)?
4)Sizes of images of listings are modificable?
5) php files are modificable?
Sorry for questions, but is difficult to choose without a demo of the backend...