Sorry all - been away from the boards for some time and didn't even realise I still had an outstanding puzzle!
Made by Menassen Custom Cars of Perth?
Not the name I have attached, no - Correct country but wrong state.
The sales ad reads as follows:
"*** Convertible. Complete body, windscreen, Countach flares, RX-7 rear bobtail, easy car to build, suit VW Type 3 - Rotary engine. D.M.T. approved in all states. Rear body restyling has been made."
I'm after that first word, and it's honestly quite a common/easy word in the automotive sphere for cars. The number of stars is not representative of the number of letters in the word.