4 used Hankook RS3 225/45/15 used on my Miata. They started last year as full tread and now they only have a couple 32's of tread left. Probably good for another 1/2 season at least, these tires PAX'd 5th at the last IPFW fun event. Still good for damp conditions (I was competitive at Grissom in the rain in August), but not good for deep puddled water. $160 pickup only in Fort Wayne, IN
Also, tires can be purchased mounted with TR Motorsports 15x7.5 wheels for $500.