I've been seeing a lot of 4-Way and 5-Way speakers for car audio applications.  Some brands that produce these kinds of car audio speakers are Kenwood, Pioneer, Sony, and Eclipse.

I'm not sure if I've ever even listened to a 4 or 5 way car speaker.  I'm used to 2 and 3 way car speakers.

Do you find that there's a great benefit to these designs?  Or are they overrated?