Transporting THROUGH Canada

I've seen postings about buying cars between the States and Canada, but does anyone know if there are issues with transporting a car through Canada? It seems to make more sense for me (if I could get this car) to get it/bring it home through Canada (for sale in New Hampshire, I'm in Michigan). I know there would be no problem driving it through if I have plates/registration, but what if it was brought back on a flatbed? (Car includes extras that need to be hauled)
Anyone deal with this before?
Author: admin