CCK and Views and What else?

custom content filtering .
Hi
I can add with cck any field i want.
I can view the content results by filtering with views.
But what i want to know is how to build custom content selection page and submission forms.
Basically what i want to do is this.If i use custom php code.I can build an ajax form that
takes data live from tables and when the user is happy with his/her selection eh can then submit those selections
as a new record.
So if i have for example a car-content type the user can use type of car (jeep,sedan,limo etc) , price , cc 1400 1600 ,number of doors,
color etc.
The problem is how to make drupal select custom fields each time.
e.g : I may have a ford fiesta car model only in black and white colors or a mercedes jeep only at 1800cc with 4 doors only.
Each time a user selects something the rest selection options are modified with the restrictions of each selection.
If for example i want to select a ford car the rest selection form elemens will update to the restrictions of the first selection.
e.g the color selection will show now only the available colors for the specific car.