Cars can sound great. But Cried is right that they can never, ever provide a reference grade sound experience. There is a shit ton of reflection going on, especially in the higher end, where the sound bounces on and off the windshield. I have a great system in my car, but it does sound quite harsh because of all the reflections. Then there's the inherited problems with the with the placement of woofers and the tweeters etc. But again, car sound systems can sound great.