Short answer: No., but I don't spend a lot of time in cars anymore.
Long answer: Yes, I put a lot of effort (or at least money) into it at one point.
One system was pretty elaborate, and since it was my first oh,la-la sport car from that company in Italy that makes those little red cars, I decided to go all out; tubi exhaust (which of course did everything to make any sound system pointless, it was so loud) and at the time, big McIntosh amp, first rate woofer (I think it was JL) and custom work done to squeeze it, the mids and tweets, the onboard system equalizer/computer and control head into this little sports car. A week after I picked it up, I called the install shop and had him take everything out and return the car to bone stock. (There wasn't even a factory radio at that point, i think, just a blank plate). For sports cars, i wanted to hear what the car was doing.
I did make one other stab with a big luxo-barge at around the same time period. It benefitted from the size of the car and the installer did a first rate job. I picked up the finished product right before we were heading out to dinner with out of town guests. I fired up Bohemian Rhapsody and we all did the Waynes' World thing. Fun.
Now, I just want to hear what is going on around me. If I drive, it is only for fun and I want to hear the car and get a sense of my 'bearings.' But, i guess if I spent a lot of time driving, especially as part of work, and was doing monotonous highway driving (as opposed to spirited canyon carving), I'd want a decent sound system in the car.
