as far as I can make out, if the car is post 1974 you have one year to make it emmisions compliant or you have to export the vehicle, or use it on closed coure circuits.

Now I know some people have managed to get 3drs over there, as far as I know the rolling shell goes first then the engine follows. I could be wrong though!

You would have to contact Fastmaul for the details

I think Canada is more lax, with a 15 year limit on import cars and emmisions.