hi Juan, and I have to agree with you. a Retired automotive Engineer could speak his mind much more freely w/o fear of any Repercussions. I'm sure such a guy/gal would know things, and likely done or seen things done in testing that never made it to market. Beancounters, Marketing, warranty, and Gubmint relations stuff are all factors in what the Automakers are willing to do on the corporate level.
Imagine what could be done if things were run on a footing akin to that of NASA back in the Apollo days, or even the Manhattan project...
Tracy G