I am interested in upgrading the tire technology on my 6. I am running the original michelin red lines but I understand that there are also "red lines" available that are a more contemporary version of tire technology...may or may not also be made by Michelin. Any truth to this and if so, where might I seek such tires? I really prefer the look of the red lines to any other tire I have seen on a 6, but I am seeking a newer version of the classics. Anyone?