A universal car seat cover system enabling an accurate and adaptable fit is provided. The accurate fit is facilitated by a headrest-receiving and headrest-securing portion. The upper front and rear portions of the universal car seat cover is movable between an open condition for receiving the headrest and an overlapping condition for securing the headrest, wherein the upper rear portions engage one or more headrest supports through integrated post slots provided by the upper rear portion. Loops interconnect separate front and seat portions of the universal car seat cover, and the loops associate with butterfly anchors to further facilitate a selectively accurate fit. The adaptable fit is by way of a two-point anchoring system enabling selective adaptability of portions of the seat cover system to fit a variety of sizes of vehicular seats, wherein the two-point anchoring system embodies the loop-butterfly anchors and the secured overlapping condition, respectively.