Thanks - I have been looking at this
http://supersprints.com.au/rules-and-regulations/2010%20Vehicle%20Regs.pdf under type 2...it doesnt specifically mention anything about convertible tops..
I did notice ...
1.11 Factory Extras are permitted. (hardtop permitted)
1.3 The entire vehicle must be as originally specified by the manufacturer
except for the specific freedoms allowed herein.
2.7 The addition of a sunroof does not necessarily render the vehicle ineligible.
Each case should be considered on its merits, taking the extent of structural
modification and safety into account.
Is it a question to ask CAMS about eligibility?
How many other people have removed their softop and only run hardtop?
I didnt think carbon fibre hard tops were a factory option?? - especially with a plastic rear window and not glass (isnt it a sport sedan then if changing glass for plastic?)