I was thinking about purchasing extra warranty for when I receive my C7. I'm not sure though as to exactly how it works with respect to time lines. I see that it must be purchased within the vehicles basic coverage period which is 3 years/60000 kms. If you buy the extra warranty upon car purchase, it doesn't start from that day forward does it? I would think it would start at the end of the 3 year/60000 kms thus giving you those extra purchased years. Would it make sense then to wait until almost the end of the 3 years to then purchase extra warranty? Just wondering your thoughts on this. Thanks for your time.