is this a purchase?
where was the car originally manufactured.
If you have purchased this car, and it was built in the u.s., and conforms to the MDOT, then you should be able to bring the car into the states as "u.s. goods being returned"
If this is a purchase, you may have to provide customs with a proforma invoice showing:
shipper (seller)
consignee (you)
country of origin
purchase price
VIN number.
You should contact MDOT to find out what they require. I think there may be a EPA form required as well. (s/b easy)
The car MUST has MPH over the KPH
The vin # should provide customs/DOT with the conformity as long as the car has not been modified....though they may want to examine it.
Canadian built cars VIN# ususally start with the # 2.
Worse case scenerio, you may have to search FOrd's website for an official "letter of confirmity" which I think may be kinda hard to do.
This info should get you started.
If you have further questions, let me know as I work for a global logistics company.