Please remember that the warrnaty starts once the car is registered as a demo. So for example if you have 6000 km on the demo the warranty may have already used up 3 months.
You can get a demo model and save money with 200KM to 500KM. The bottom line is the best deals are the ones the dealer has in stock. I picked up a demo with 345 KM on it listed out to over $50K and I got $6K discount.