I don’t have much experience in high-end luxury cars but I have owned a spectrum of brands from European,domestic and Japanese manufacturers.
Honestly I have never been impressed by a factory system. The H/K in our older Mercedes was a joke. We all know Bose is a gimmick. I’ve heard the Fender systems are pretty good but I’ve never had the chance to demo them.
The best I think I’ve heard is the Logic 7 in BMW.
What are some of your favorites?
I had a 2016 Audi Q3 with a Bose system that I was actually somewhat impressed by considering Bose’s typical sound.
After that I had Fender in my 2019 Golf R and found it to be bright and a bit harsh. Always had the treble and mids EQ’d down.
Now I have Harmon Kardon in a 2023 Kia Sportage and it’s adequate. It doesn’t blow my mind, but I also never notice it sounding bad.