I think it will take for Corvettes not to sell well (like in Alberta in 2016) for a 0% from GM as I think Corvettes are normally excluded.
When they do offer 0% it is to sell current year models. So any chance with the 2018 model will likely not be available until about July 2018 and probably only last a month (for available cars only).
It might be best to figure out the cost of financing and try and negotiate that amount off the car. It will balance out to near the same price (and with less net HST/GST too) ...
This way would also mean that you can choose exactly the specs and color you want and not be tied to "available units only" in a year end blow out.
... maybe?
(it's the way I do it other than I hit it bang on for my 2016 Stingray last July 29th - 0% offered and I found 4 available units that we would choose from - it was just a matter of the best price after that - and it was in Alberta which helped the buyer last year. It was our time to buy that we couldn't refuse and Aug 1st the 0% opportunity was gone for the Corvette)
I also would think that a dealer or two would put together something exclusive for themselves and offer 0% but I can only imagine that it would affect one's ability to strike any deal that would be significantly less than the sticker. It is just a numbers dance at times ... and who knows really.
At this moment GMCanada.ca says to speak to a dealer for offers.
Best of Fortune to you ... and I hope you can get one! Cheers!
Just read a post in Motor Authority: Gm is offering 10% off MRSP for the month of May on ALL models - awesome deal.