autoX tires are not very good for drag tires....the sidewalls are much much stiffer and do not give like a drag tire there for you will get ALOT more wheel spin on these...and as far as the amount of "rubber" left, there is SOME not ALOT (judging by the pics)...my g/f's stepdad races SCCA and used to run oval track and believe me those tires dont have a whole lot of life left, (judging by the pics)....but bump for you and good luck with the sale