ATE Superblue/Typ200 Racing Brake Fluid can be found in all of the Trackspeeds shop Mazda Miatas. It offers exceptionally high boiling points at a very economical price point. Comparable fluids from Motul are over twice the price! Price is for a 1L container.
Dry boiling point: 536*F
Wet boiling point: 392*F (fluid is "wet" when it contains 3% water)
As of August 2013, Superblue is no longer available for distribution in the US.