Next to theaters, cars are the ideal speaker environment

I agree with everything erik said above. Sadly, many auto manufacturers (Honda, for one) don’t even offer CD players as original equipment anymore. If it weren’t for XM radio, I might consider taking the bus (LOL). Candidly, I had a Mark Levinson sound system in my Lexus, and an upgraded Bose (I know, I know) system in a Honda years ago, and neither one was much to write home about. I’d be willing to give that mbl system a listen though.

My current vehicle offers a JBL system, with the tweeter embedded in the front roof supports. It seems that they have foregone having the tweeter stick out so much as use the moulding as a waveguide.  Outsatanding!

Large flat reflective surface right in front of your face. More large flat reflective surfaces inches from your ears. Speakers down by your feet, some within inches others several feet away. With a great big obstacle in between. Honestly, it is hard to think of anything less ideal. Compared to a car your coat closet is a dedicated listening room.

The one thing about a car from a designers point of view, they do know the volume. Whatever the options, at least the volume stays the same.

So you have confused ideal with uniform. This happens all the time. May I suggest a dictionary? If all you did was start using words according to their actual meanings the improvement from that one thing alone would be, uh, outsatanding.

I always have pretty good sound. Just no soundstage, no closing my eyes and point out the instruments location. Clarity, in lows, mids and highs, never an issue. Magic though?

Can get pretty close in a van or RV if you really watch what your doing..

My Camry will please. I tightened the whole thing up with dampening mat.
4 doors, trunk, and floor boards.

It’s all wonderful until I start it.. LOL

Alpine head set
10k watt system. Three, power amps. Two 3K stereos and one 4K mono. class ds 1/2 ohm stable. YUP 1/2 ohm..
COOL as cucumbers.. at 4 and 8 ohm.

I use a 30 farad cap bank, all wired with SOOW 4 x 4 gauge copper. I still have most all of my trunk and it looks beautiful it’s all in armor and mounted in two custom modified well pockets either side of a FULL size spare, behind the rear tires. Dude it can bounce.. Kids can’t believe a single 10" and my setup can hit 120+ db.. 124 actually AND I drive up, all grandpa like..:-) Stone stock 2003 Camry. Perfect shape..

You pop the trunk and swing the doors open up against a two story about 60 foot wide.. :-) Its clear, that’s, all but good... MONO ay...

The second 12 VDC battery is in the spare compartment centered under the spare. Lithium. 200 amp alternator and a Gel Cell for the starter, main and computer circuits.

I’m wired at 4 ohms for the bass and 8 ohms for the doors, dash, and rear deck.

Single 10" IB (sealed) rear
4 6 x 9 coaxial in the doors
4 tweet buttons AMT doors
4 5 1/4 coaxial front kick panels and rear deck
2 top mount dash 3" FR drivers

Again looks all factory.. The Organic Mechanic strikes again.
Boom Boom. "Da Club" comes to mind.. little Carlos, War.. Cisco Kid. :-)

Guy/Girls.. 1000.00 at the most.. all the drivers, less the tweets and sub, are pro drivers. I did the work.. No funblin fool in my cars or PUs..

Regards