The Nissan dealership I purchased from clearly indicated to me that my warranty would be void following purchase. They even made me sign the page of the warranty that provides very clear examples of when the warranty would be void and when it wouldn't.
In order for the warranty to be valid in the first place, I would need to register my Nissan in the US, which I did not. This is where the warranty becomes invalid.
If you purchase a brand new Nissan, register it in the US, then import it and register it in Canada, and you do not transfer ownerships during this process, you're in the clear. If I knew someone in New York I could have registered it with, I think I may have gone through it, though I'm not sure how much of a headache it would have been, nor how long it takes to register.
Though I did find a fairly convincing argument against purchasing a warranty in this thread:
http://www.clubsmartcar.ca/for...37ac3
smartcruzin basically goes over the details of how after a few years, the money and the interest accrued basically end up being more than any series of moderate repair jobs would cost. Then again, warranty companies have the law of averages on their side, and there's a significant loss for me if during the first year I need the transmission rebuilt twice. I haven't quite decided if I should hedge my bets or not. The only remaining selling factor for me is that if you don't claim anything during your term, Secure Drive will refund up to $1000 of your premiums, or provide a $2000 credit towards a car from the dealership that you purchased the warranty from, or towards another Secure Drive warranty.