The parts for special edition cars (35th Anniv., Bullitt, Cobra, Mach 1, etc) that make them unique compared to your run-of-the-mill V6 or GT are typically gonna be higher than you would expect, especially as they get older. This includes bumpers, rocker panels, C-pillars, hoods, intakes, motors, interior parts. Look at the price of a set of Cobra or Bullitt seats compared to those of a standard GT..