You can find new added modules under STM Listing Layout and STM Listing Single Car modules.
Please note that these modules work only with Classified Layout version of the demo content. STM Listing layout tab contains modules like STM Listing Search (tabs), STM Blog grid, STM Listing tabs style 2 and etc. which are most important in this layout.
There are several modules for single Listing post page under STM Listing Single Car tab.
Classified layout Home page was built use above VC shortcodes. You can also customize this page easily through VC Editor: