That’s the way blogs work…create a category for cars and one for bikes and any posts you assign to those categories will appear on the appropriate category pages.
Aha ok, Anyway just to be clear. Here is the the template that i have downloaded. Its I free template. So I would create one tab called “Cars” and one “Bikes”, and I would like they to be shown like the one on “Home” page and “Blog”.
Ah sorry one more thing, I might be boring, but how to I assign category to the page
Under “appearance” in the left menu there is an option to chose “menus”.
Here you can “create a new menu”, and choose from “Categories”. The categories needs to be created before you build the menu. Choose the categories you want to highlight in your top menu.
When the menu is ready you can place it where the theme allowes the different Menus. Usually across the header, but also in the footer, at the top of page or in the sidebar.
You don’t “assign a category to a page”. Your category pages are created dynamically when you start adding a category to posts. You should probably familiarize yourself a bit with the basics of how wordpress works. This should help:
https://codex.wordpress.org/Main_Page
