My dealer honored the X Plan from my Mustang Club of America membership on my '21. Here are links on the plan description and ineligible products. Dealer's don't have to participate.
https://www.fordpartner.com/partnerweb/jsp/howitworks/fordpartner_rules.htm#products...
Direct from my current Ford Credit contract (State of Idaho):
F. Vehicle Insurance: You must insure the vehicle against loss or damage from collision, fire or theft. You must name Creditor as the loss payee under the insurance policy. The Creditor must approve the type and amount of insurance...