Here's a comparison from 2012.
Unleaded vs E10—the comparison test | carsguide.com.au
NSW gov. has been going to end ULP (E0) availability since 2012, but the date gets delayed ... and delayed ... and delayed.
Now, after only having one local (small) service station selling ULP for a few years, two big chain service stations have started selling ULP again. I'm hoping it's a sign that ULP will continue for years to come.
The list of (Australian market) E10 compatible cars only lists Mazdas from 2005 onwards, so I shouldn't use it in Baa anyway.