The Firehawks I have on now are my first set of Z rated tires. I really can't remember what the odometer read when I put them on but I know it was right after I bought the car w/ 67k miles. I now have just over 92k and I'm ready for another set. If I need to, and this includes storing the car for the winter, I can last through maybe mid summer before they are bald like a slick.
GroovyJay reminded me of what I forgot to add to that. :laughing: I drive it hard, get wheel spin if/when I take off aggressively but I haven't done any burnouts w/ these tires. I liked them a lot when they were new. Good wet and dry and they are pretty quiet. Had them up to 95mph in a rainstorm when new and had zero wheelspin. I just wish they'd last a little longer.