I can't understand why anyone would want "car sound" in a home... The home system SQ is SO far above any car system I've heard. I started bi-amping my car systems in 1976, but none can come close to what the home system sounds like. Good home subs are so much better than any car subs I have heard.
Great auto sound is much easier and less expensive than home hifi. If done well, you can use a single 10” JL Audio sub with custom crossovers and caps. Of course you need 3 way sound up front, and there are several ways to achieve that. Rear fill is just 2-way and only noticed when turned up too high. However, 3 two channel amps, dual subs with 6s,5s,4s,2s and tweeters in each door with the aforementioned rear fill will sound well beyond what most people in here have heard and the parts are not expensive in comparison to home audio. Granted, the installation in my ‘58 Chevy was $1,800, but those guys earned their money by building a custom hidden sub box under the rear deck that was covered by the amp rack, which featured completely hidden wiring, sunken red gel top Optima battery in the trunk and custom door speaker grills I copied off Shaq’s Testarossa Suburban, which they had done previously. They were one offs until I requested them. I had been given a mid build tour and the whole rundown on his mom trying to control his checkbook as a rookie and how he had scale the build back because of her meddling and how he then called from the set of his Nike commercial and said go with the big baller version etc.
Anyhow, I’m a musician and was attending BIT at the time and briefly shipped the car to Orlando to use the store that I bought my Krell , B&O, Adcom and Fosgate gear for the custom car stereo. And you can bet the farm, it was worth it. The east coast was light years ahead of anything in SoCal at the time. So called shops to the stars couldn’t visually build their way out of a wet paper bag at the time. Sonically, they were clueless. Some places are still there. But if you want impeccable auto sound, you can get it. You just have to know how to spell it out for them. But to say it doesn’t exist or that it shouldn’t be emulated in the home, just means you live somewhere that still hasn’t figured it out.