You can modify or add your own filter options via Listings -> Listing Categories. Via editing a Listing Category you can set up filter option, visualization and other settings. In order to modify Listing taxonomies you need to go via manage icon.
And manage their default conditions/values:
Main Inventory page options you can setup via Appearance -> Customize -> Listing. There are three main section like Inventory settings, Single Car Settings and Compare.
Also you can add Listings as a tabs or with Filters for any page using custom STM VC elements: