Hi @luketapis
Thank you for contacting us today. To integrate car models and years from an external source like car2db.com into Formidable Forms, you may be able to use the Formidable Forms API. Another option would be to import the data and use cascading lookup fields.
Both of these options are Pro features though, and we are only allowed to support the free “Lite” plugin via WordPress forums. For more information, could I ask you please to open a presale ticket in our helpdesk here? https://formidableforms.com/new-topic/
Best,
Nathanael.