dude the demand is very high.....
considering its mileage...
40k driven...matlab 50% life puri ho chuki hai rotary ki...
the condition is no doubt excellent....but the price you are asking is for an under 10,000 driven rx8...
it wold be very very difficult for this car to cross the 13-13.5 mark sorry to say....
i apologize if you did not like what i said. 
peace and BEST OF LUCK