Please, tell me how to add a number to the right of the taxonomy in the drop-down list, that displays the number of cars available for this taxonomy? So that when the user selects the necessary parameters, he can see whether something will be available or not, before going to the result page…
I’m afraid that is not possible to do. Usually I suggest a custom code where I can, but this is not possible to implement with a few lines of extra code unfortunately.