I bought my car (new) three years ago from the states and the process was very simple back then and I saved over $15,000.
I had to do some research because for new cars not all warranties are transferrabe and some dealer won't sell new to Canadians.
At the time most of the information I got was from redflagdeals.com
I am thinking about buying a car too as I am just walking about in Calgary as I transferred for work here and my family remains in BC - should have bought that car Civic I think that was being advertised a few weeks back.
Here is the thread - go to the last page - but read the first couple o pages in the thread. Some people think you cannot buy from the sates but it was easy as pie for me and I bought a vehicle made in NA so there were no import duties. In addition I paid no state tax just gst and pst at the border - that might however be contingent on the state.
http://forums.redflagdeals.com/wow-n...st-1-a-307601/
Good luck