Pickup Location (airport, city, or ZIP code/postcode): SYD (Kingsford-Smith Sydney Int Airport)
Dropoff Location (if different) (airport, city, or ZIP code/postcode): SYD
Pickup Date and Time: 6th Dec 12:00
Return Date and Time: 10th Dec 17:00
Vehicle Size Preference: Compact SUV/CFAR
Home Country (if not USA): Australia/UK
Memberships (AAA/USAA/airline FFP/Amex Plat/Cent etc): Amex Plat (also airlines as per FT profile info but doubt any of them help, BA seem to be tied in with Avis)
Best Price you've found, Hertz or otherwise: £106.98 (Hertz UK), A$230.44 (Hertz AU), US$153.64 (Hertz US) - all on Amex Plat CDP

Annoyingly they have a 20% off Summer Sale for rentals over 4 days offer which says for bookings made by end Nov and vehicle pickup from start Dec on the website however the code doesn't work and in the small print this offer seems different to the others on that page https://www.hertz.com.au/rentacar/Ca...Special-Offers.