I don't particularly hate those Chevy ads, but I find them laughable. By featuring those supposed consumers who 'ooh' and 'ahh' over the new Chevy cars, and say things like "Really? This is a Chevy?" - they seem to be conceding that their cars have been uncompetitive poorly designed and built junk until recently. That would be MY opinion, but it seems a bit risky to admit it, even in that round-about way.
That was exactly my first thought as well. It also occurs to me that GM should be touting the quality of the vehicle itself and not the add-on technology but perhaps that is what appeals to Millennials. I got a real laugh out of the "radio won't work unless the seat belt is connected".