Registrar of Imported Vehicles RIV: How to import a U.S made vehicle into Canada lists what you can, and cannot import and what needs to be done to make american cars meet canadian regulations. Once you bring it over, you have 45 days to make all the appropriate changes. Certain cars need nothing to be changed, while others may only need child teather restraints installed. The most you are looking at is $600 and a couple days to make the changes.
It really is that easy to do, only canadian residents can do it and the only hard part about this is the time invested in driving the vehicle a couple thousand miles.