Bringing a U.S car into Canada

I purchased a US car last year, had the previous owner deliver to Canadian side (Sarnia). I had previous owner fax title info 72hrs in advance, get paperwork Stamped on the US side, and met him and car Canadian side to finish transaction. It was only 15min ordeal on Canadian side and I was on my way. One thing to look for is date of mfg sticker on drivers door, if not there, you are required to get a letter from mfg proving build date. Hope this helps.
Rick