The Lexus I sold had a Mark Levinson sound system. Before that, I had a Honda with a Bose (I know, I know) sound system. I wasn't impressed with the sound of either. I'm guessing that there would be a serious uncharge for a Burmester system. If I can't afford Burmester for the home, I doubt that I will spring for it in the car, but I'd be happy to take it for a test drive.
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.