At last a place where I can post something.
I tried elsewhere then got forced to submit a ticket to the support team.
Maybe I can get a faster response here.

How do I create complex forms with multi-drop down options with the ability to select other options?

Example
Name
Email Address

Country - (then I select one of five countries) follwed by another drop down box prompting me to select a town

Car - where I then select type of car with another drop down box asking me to select a model

House - followed by another drop down menu describing the type of house in question.

Title - followed by me, ms, mr followed by another drop box prompting me to enter my name.

Can your form builder do this?

I am not looking at radio buttons at the moment.

Form builder at this time cannot do dependent dropdowns. But you could setup a page with links to different forms to keep confusion under control.