I have a "Fender tuned" system AKA Panasonic in my 2017 VW GLI and I think it sounds just fine. I wasn't expecting much after all I am listening in a car.
Concerning high end audio names in new cars
It made sense to me when high end audio manufactures started selling their brand names to the likes of BMW. I really had to look twice when I saw the Jeep Grand Wagoneer on a commercial with large blue MacIntosh meters on the dash! I went to the website just to make sure my eyes weren't deceiving me. It's just fluff of course. I've been in several vehicles with supposedly high end audio systems. I wasn't impressed with any of them. I wonder what impact if any the Mac meters will have on the general public. I hope audiophiles steer clear of this model car as it could prove to be a distraction for sure.