I've received and fitted the rear interlocking floormats(W-25;gray). It took about 3 hrs, required measuring and cutting, in some areas around the front seat runners, in areas outside the deep channels meant for this contouring. The pieces that were cut out around the center console were stiched to the rear of the mat(yes, I really did that) to fill the outside rear curved triangular area, between the side of the rear seat and the sill plate. These pieces had to be fitted before stiching. Note: the left piece gets fitted to the right side and vice-versa. The overall appearance is not perfect, but is very close to a custom look. Equally important, it covers the center floor and the 1 inch wide carpeted ridge just inside of the sill plate which looks like it will wear poorly if it is not protected. I'll return the regular (universal--W-20's) mats to weathertech. Things that you will need: 1. Marking pen(eraseable) 2. sissors, box cutter, single edge razor blade(note: some marking and cutting will have to be done from the underside of the mat so as to preserve a vertical rubber edge to the cut end of the mat) 3. needle and thin monofiliment fishing line with pliars to pull the needle through the vertical edges of the mat 4. Intestinal fortitude-remember when you first take the razor to the mat that it only costs $40 something dollars and this is not brain surgery ie. anyone can do it. For example, minor errors under the front seats wouldn't even be visible.