It has been 12 years since I Lemon Lawed that Chevy. I think the per mile charge was set forth by the state Lemon Law. Of course, that truck had spent a good portion of the year I owned it in the shop, so the miles were quite low. I wish I could remember the cost per mile for you. I had put wheels and tires on it, so I lost out on those also. Lemon Law was not easy, and the attorney told me I had one of the most cut-and-dried cases he had ever seen, and I had good documentation, and kept a call log of my dealings with the dealership, and GM.