Form with Conditional Drop-down Data

I need a method/solution of having users submit a form that compiles to a table or spreadsheet. The Forms plugin and the Tables plugin can both accomplish this. But I need some conditional drop down lists, like you would find on a Make / Model selection of a car website. Does anyone know how I could pull this off with the tools already available?

The app Forms is great and i love the app. There is dropdown but not conditional dropdown.

If you only need a few conditional answers you maybe can use instead of the form url for the start a markdown text (Nextcloud Text) for a start and link there urls to the conditional forms. Then the user can differ between the conditionals at the beginning (before) the forms.

The disadvantage is that you then have to merge several forms. But this should be easy with the CSV export of the forms.