I got a pair of MB quart 4" marine speakers from my brother in law. Will the speakers work alright in a car. I don't know if there is much difference other than they may be more water proof.
Plug em in and try em out..And they are wateer resistant not water proof..If you dont like em you can always sell em or set em aside and get a pair that you do like...BTW you will want either a midbass driver or sub to go with em.