I'm hearing that any noise maybe a concern. I'm at the 40k mark as well and the car performs flawlessly. I have been reading every piece of documented literature concerning the supercharger, and the general analysis is if its rattling and has a high pitch whining it will possibly fail. Warranty...
New to Cadillac. Own the car for about 3 years. Read so much about this car. Wanted to know if it was as good as the literature states. Besides the supercharger issue and a bit more road noise than what I expect, I'm some what impresses. Longevity will be my deciding factor.
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