Not a lot of info but take a look at http://www.caraudiomag.com (if you haven't already!) but my take on speakers of any kind is to go listen...and not at electronic shops with the speakers on a board on a wall...try going to a shop that specializes in car modifications...they should have some people that want to show off! Car accoustics are wierd...I am not a believer is a lot of money in car audio but power makes up for a lot!