I think they (GM) know what they are doing, they've only been doing it for about a century.
Just like any other relationship, if there is a lack of communication, it will result in failure.
In that regard and to what el ess A has said, look at the leaps and bound in quality since the 70's and more so in the last decade since the Asian invasion.
I think that GM is #1 in quality for a reason, because it's all about bringing 'em back.
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2015 CRT 1SS/1LE RS/Recaro's/NPP/Nav/Rear vision pkg./BA speaker upgrade. Stage 3 BMR cam, ARH 1 7/8 headers, CAI,
BMR 1.25 drop springs, JPSS Billet Bushings, Peddars Cradle Bushings...460 whp...so far....SOLD, but not forgotten!