I'm getting some new tires, probably BFG's, and was wondering what is a good tire size that can go all around. I'm pretty sure the rim is 15x7. I was thinking about getting 225/60/15, because I was reading on some mustang forum, that those were a good fit that don't need any modifications to put them on. I'm not sure if it is different though for Cougars. So if anyone could tell me what is a good size, I would appreciate it.