Only rumor so far and it'll be a sad day if it comes true but if anyone has a Canadian delivered/built car or Vin they want documents for, it may be best to play it safe and get it done now...before it's too late?.
I've been told they have most all '77 model year and newer F-Body cars in their files too regardless of where built/shipped new..
http://www.gm.ca/gm/english/shopping/parts/vintage

~ Pete
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I like real cars best...the REAL real ones!