Well, there you go. Tristan has spoken and you know when he speaks, all must stop, listen, and take what he says as the absolute truth. I am throwing away every piece of audio equipment I have for the car now because Tristan, with his knowledge of everything he knows nothing about, has spoken.
Sure, for the 'chavs' as you kids call them today, it is all about making midbass as loud and annoying as possible. But, don't tell me that audio equipment in a car that you spend hours in is useless and a waste of money. The acoustics (or lack of) is the whole point of high fidelity car audio. Anyone can go out and spend big money on a system in the house and have it sound like any other system. In a car, it takes thought and design to come up with a system and installation. It takes precise speaker placement to achieve anything other than noise in a car.
In my car, way back when I was involved with the car audio stuff, you could close your eyes and visualize the soundstage. You could visualize exactly where each member of a band might be at. You could hear the breaths of air intake between verses of the lead singer. The soundstage was indeed much larger than the car itself.
Now is the time when Tristan comes back to spout about added weight and all that other crap. For the added weight of a properly designed audio system, you could just wear a lighter pair of shoes, clean out the govebox and your wallet, and now you've just made up the majority of the added weight.