Hi all you New Zealanders
Olive is right, 155s are build to an Euro standard (2 different ones actually,, before and after 9/93). Given the chassis no. an Alfa Distributor or Official Importer should be able to tell which and supply a copy of the certificate from the factory - wheather or not he have imported any 155s.
By the way, all Q4s built are LHD.
Just returned from Australia (holiday) - plenty of 156s, GTVs, Spyders and and a few 166s but no 155s but some older ones (75s, Spyders Alfetta and GTVs. A chap (with a classic racing GTV Bertone on a trailer) told me that they have had a 10 years gab in imports in the 90'ties.
Good luck finding good 155s.
PS. I've just sold my Danish tax ridden 155 2.0 16v S for GBP 7700.