There appears to be a reference to that registration here from March 2005:
http://www.ausrc.com/forum/showthread.php?21146-1-1-Cars-previously-owned-and-currently-driven/page12#/forumsite/20632/topics/21146?page=23Here's the text from the post:
"I never posted in this thread so here i go I drive a white 1989 mazda mx5 ( SLYMX5)which i turbo charged and highly modifiedthe beast used to be the perfect sleeper and i was never beaten in it It was writen off last year and im still awaiting my insurance money so i can go out and buy myself another one and go nutts on itwith the set up im going for i should be looking at around 200 kw at the wheels and a s#$t load of torque in a car that weighs just over 900kgs- cant wait At the moment im driving and doing up a 1974 baby blue,mk1 2 Door escort, which im currently geting a 2lt motor worked and built by my brother and i and when finished should go pretty hardIve got the stock 1.3lt in it at the moment which i got bored one day so my mate who owns ROTORTECK PERFORMANCE and i fitted a Garrett T3 turbo with an external wastegatewe just wanna see what we can get out of the 1.3 and how much boost we can dial into itits almost finished As you can tell im Turbo mad"
Right rego, right year, wrong color