i've driven on Nitto 555, and perelli f0's and these Pneumant's which are apparently pretty new to the US are the best tires i've used yet... the traction is amazing and not to mention the handling is also amazing in the rain (which was a big problem i had with the other 2 tires i used... traction in the rain is a big issue here in seattle).. anyways thought i'd let you all know about them.. lemme know if anyone else has used them and how they feel.