I've looked in this and "other" forums for 3 hours with no luck. It seems there are two different styles of factory seats. One, the typical with the grab handles, and others with a conventional headrest that goes up and down. Question. do these come with certain trim levels, or option packages? Also, is there a good place on here or online to dig down to all the differences between the different trim packages? Specifically for the 1995-1998 series 1s