I need some way to get the search to be this way.
Looking at a category such as Ford and I get a list of all Ford. such focus, lobo, excursion, etc ...
Ford being the main category and subcategory focus.
And inside there is another subcategory such as 4.7 or 5.0 engine
but clicking on the car, you could say focus, I would make a list of engines.
Looks like this ...
I saw this system on this page