According to what I gather, the advantages of this rubber come from a tweaked version of Primacy HP. The ideal rubber for muddy areas and slick surfaces. The manufacturer is German. Currently, bears made by several manufacturers, starting with This Country and on through Poland, Italy, and France, are being marketed. Therefore, it's possible that the full spectrum of manufacturers can be represented when you purchase this rubber for your car. seem better on each tire marked "made in."