[spookypt]

Mate they are Challenge Series Cobras. Run under N.A.S.A. rules.. Stock 5.0 Mustang motor etc etc. Bit like an homologenated class like Mini's etc...

As per your link there is some discussion in running several classes within the group as Australian Cars may also be entered under Sports Car 2b Log booked etc like Pythons and Gary Walthers etc.

Spookypt.