club.liberty.asn.au

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Since no one else has replied, I'll post the little bit I do know.

REVS check should be extremely accurate. Any finance taken out on the vehicle has to be registered (by the Loan company I believe). So it'd take a pretty big screw up for that not to be recorded. It's probably even legally required. Because anyone buying a car is then responsible for the load (even if taken out by the previous owner), as stupid as that is. That's why it's very important to do a REVS check, otherwise people can get burnt.

Car history will depend on whether a service centre bothers to update the book. If it's been serviced at Subaru, that should be very accurate. Every Subaru dealer will enter any work done on a car into their system. So even if a logbook goes missing, they can check the service records in the system.
But of course no other service centre has access to that, so if a car has been at an independent garage, you'll have to trust the logbook stamps (which could be faked I guess). I've seen logbooks of wrecked cars for sale on ebay.
But even within Subaru, getting info from interstate is very difficult. I tried with my car - they could tell me what date & km it was serviced, but no details of what was done.

PPSR is a government initiative register, stands for Personal Property Securities Register. Revs and Car history basically get their information from PPSR and charge you 10x the price of a PPSR check.

Thanks for sharing.

Can accident history be wiped ? I did a check and still suspicious :/

Minor accident damage isn't recorded anywhere as far as I know. Since a smash repairer would've done the work (not Subaru), there definitely won't be anything in the Subaru records. But if an accident is major enough, and the insurance company declares it a repairable write-off, that is recorded in the REVS check records.
I guess anyone with access to the secure databases may be able to wipe it, but that'd be like someone messing with bank records (may be possible if someone worked there or hacked in, but very very unlikely). Although I'm sure bank records are a lot more secure than REVS stuff lol.

Easiest way is the get a pre-purchase inspection. A mechanic will be able to see in minutes if it had an accident. Even a really well repaired car will have eg weld joints that will make it clear it has been in a smash. And repairs not done well (which is not uncommon), will still show damaged/bent sections of eg the chassis/suspension that might not be clear to most peole from the outside.

Get a pre purchase inspection mate if your worried it's been crashed before

The statutory information comes straight from Government records - so it's pretty good.