Yup, I've read your posts saying that you feel that your Escalade has better sound, and it certainly may. I've never heard one so I can't offer an opinion on that specific comparison. OTOH, my RAV4-EV has been upgraded with a/d/s amps, JL Audio speakers and a JL sub. It sounds great, and I'm also a bass player, so I have an opinion on bass response. That's my basis for comparison, and on the one track I got to try, the model S audio sounded just fine to me. I didn't have my USB stick along so I couldn't try my other specially chosen test tracks, but I will at my next opportunity.
I just thought it was important to counter the ongoing criticism with an in person report of perfectly satisfactory experience. Let me also say as I have before that I was underwhelmed by the sound in the car I drove at the Fremont event. Quite underwhelmed. But that was unfamiliar, possibly streamed audio, so it may have been the source, or it may be that further refinements have been made. I'm feeling much better about the sound now, and I hope that my upcoming testing with more tracks will bear that out!