Car audio is not 100% marketing ploys. I happen to know a sound engineer that works for a major auto maker and has work for several. While sometimes the systems can be not that great or potentially marketing, some of these designers are really working to put great sound in cars. I would caution against making opinions about the sound of what’s in the Wagoneer without hearing it first. It is a truly high-end vehicle and I venture to guess that they use some serious engineering before sticking that sound system in there.
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.