A basic set is the main portions of the seats, bottom and tops. For example:
There are exceptions to these statements but they are noted in the descriptions of each seat cover.
Straight bench seat with shifter notch.
Bench seat with built on headrests.
This seat has a 40/20/40 split bench seat with NON adjustable headrests and a folding opening center backrest. Center seating exists. For SLT.
This seat is a 40/20/40 split bench seat with center seating. The area of non adjustable headrest is a curve rather than a 90 degree angle. Usually for ST model.