Hi. I have been away from the forum for a long time. This is a reply to a post I saw at vintage-mustang.com by someone who is the original owner of a 1972 R code Mach I: I saw your post, and I am restoring my 72 Bright Blue R code convertible right now, and your post provided me with some valuable information. I was unsure whether these cars came with Goodyear Polyglass GTs or Firestone Wide Ovals. Apparently your car came with a set or Polyglass gts, and that's great, because I just bought a set of new take off F60 15 Goodyear Polyglass GTs and all are (incredibly) date coded for 1972! I think these tires will look awesome on the car, but the ride is going to be aweful! I'd like to post a thread for everyone out there to chime in on which tire looks better, and a general conversation of the dilemma we all have of whether to compromise the value of a rare car when it comes to drive-ability (I'm conflicted that I could have put a set of new BFG radial T/As or Cooper Cobra radials on the car and the car would still look nice but ride a lot better). I know I could have two sets of wheels and tires and change them out for shows vs. driving, but it is such a pain to spend all that extra money and waste the space in my garage. Thanks! Kevin.