Hi.
Unfortunately, I have had the same thing happen to me. I had 1 speeding ticket in the previous 5 years, my father was dying in hospital and i was in a rush to get there (not speeding or hooning at all). My only crime was owning a V8 HSV.
There really is nothing you can do if you get a lying police officer who uses their "discretion" or lack thereof to impress the officers back at the station.
My vehicle was impounded for 3 months on a first offense and I was left 140ks from home in probably one of the most horrible situations in my life.
I sent many letters to the station involved, police prostitution (intentional typo) and everything fell on deaf ears. I ended up having to pay a solicitor and barrister about $10k to take it through trial and I won over a year and a half later.
I lost my car, my job, my car, almost my house, and my father (he was going to die regardless but I was there to say my goodbyes and they took that from me). If it wasn't for my father's estate, I would have lost everything.
The service station cctv footage shows me driving off normally and not doing a burnout as the officers mentioned and that is the only thing that saved me.
Don't own nice things because the police will try and take it. Just buy a ute and you'll be ok