Contact Form 7 JavaScript WordPress

I am trying to create a form with some car makes & models dropdowns for WordPress . For example if Ford (from make dropdown) is selected then show a dropdown with F35o and F150 (model dropdown), if Nissan (from make dropdown) is selected then show a dropdown with Patrol (model dropdown). If nothing is selected in make dropdown then hide all model dropdowns.

I have no idea how to get the values from those CF7 snippets.

[select* make id:4 "Chevrolet" "Dodge" "Ford" "GMC" "Jeep" "Nissan" "Toyota"]

[select* model id:1 "F150" "F350"]

[select* model id:2 "Patrol"]

via Chebli Mohamed