i checked half a dozen plate character configurations in standard colour, black and white and black and gold.  All show sizes 372mm.  The lady from my plates said to do that but even the site sucks.

She reckons you can't get smaller plates in black with white writing even though i mentioned to her i know someone who does have them.

Once again, you need to go into the RTA. The people on the phones are half-wits and are only reading off the same internet page you're looking at.

They do have smaller plates, but as Chris mentioned above, they're personalised plates, not standard issue.

Head into your local RTA, and they'll have a section on the wall with every style of plate available attached to it. You'll be able to see the sizes in relation to each other. Ask them everything you need to know - style name, size, price, availability etc - and you're good to go. Easy peasy!

The on you'll be looking for is Black with white lettering. 2 letters and 3 numerals.

Thanks Russ.  Seems like the only way to go.

TA-400 in black and white. $200 order fee and $90 annually thereof
You can check on the website see if they are available

Hi Chris.  I searched for TA -400 but it's already taken.  I'll have to try and figure out an alternative.  It would have been a good one to have though.