There is two hook's now and not only do they clip into the floor the clips also have backward facing teeth to further prevent them from moving. Not to mention the mat's have rubber tit's I guess you can say to help them from moving. We had a new xb in the shop with a rear cargo mat with these same rubber tit's after pressing the mat down we grabbed the mat and pulled and I dint not budge. I dont think that guy wrecking was due to the mat. There is just way too many other things that he could of done. But I know that toyota has a history of floormat problems