
Why does my car shake when I'm stopped at the lights?
A car shaking at idle usually comes down to four causes. Here's how to read what your car is telling you and which ones can wait vs. which ones can't.


While it’s easier than ever to find a used car online in Australia, it’s also essential to look out for used car scams. The ACCC’s Scamwatch received 761 reports of second-hand vehicle scams in the first half of 2023 alone, at a collective cost of around $1.1 million.
So how exactly do these scams occur? And most importantly, how do you avoid getting swindled while shopping for a used car? Let’s look at what you need to know.
Unfortunately it’s possible to come across car sale scams via Gumtree, Facebook Marketplace and other popular platforms. Here are some of the key scam types to be aware of.
One of the most common private car selling scams is to simply sell a car that never materialises. Fake sellers list a car at an unbeatable price, then give a reason they can’t meet in person. Some say they’re working FIFO. Others say they’re about to be deployed overseas and must sell urgently.
The scammers will often request payment through a bank transfer or third-party website. Once payment is made the seller vanishes, leaving a devastated buyer in their wake.

Another of the most common car purchasing scams involves deceiving buyers through a shiny new coat of paint or a misleading odometer.
Odometer tampering has been an issue for decades, but it turns out scammers can also tamper with digital odometers. In 2022 police busted a group in Queensland after they’d allegedly wound the kilometres back on hundreds of cars.
In some cases cars are given a new paint job or new interiors to hide the fact they’ve been damaged by fire or water, or have been written off after a serious crash.
Another fraudulent car sale scam involves selling stolen vehicles, sometimes before they’re registered as stolen.
In 2023 a student in WA bought a Holden Astra at a great price. He did the right thing by getting a Personal Property Securities Register (PPSR) report beforehand, which shows if a car has been stolen, written off or has debt attached. Unfortunately, police later came knocking on his door. It turned out the car had been stolen the day of purchase, so there wasn’t enough time for the theft to show up on the PPSR report.
This car selling scam involves either stealing or replicating car service books to give the impression of a flawless service history. In some cases even experienced car dealers have fallen for this deception, unintentionally passing the vehicle to buyers. This is where a thorough check of the car is important, to ensure the service history matches expected wear and tear.
There might be no single glaring sign, but here are some of the red flags to look for when buying a used vehicle:
There are a few simple ways you can boost your chances of a successful used car purchase in Australia.
$2 is all it takes to get a report from the government’s Personal Property Securities Register, and doing so could help you save thousands. Enter the 17-character vehicle identification number (VIN) of the car you’re considering and the report should outline most major issues. If all looks well, check that the VIN matches the physical car as you make the final purchase.
Even the smartest people can get scammed. Scammers can seem very genuine and can offer reasons to explain away almost anything. If something doesn’t feel right, think twice about the transaction.
You can buy from a private seller or a car dealer when purchasing a used car. Private sales can involve a lot of trust and intuition, and there aren’t many ways to check who you’re dealing with. Used car dealers can vary in reputation, so it’s important to research those customer reviews and verify their contact details.
A third option is to buy a car online from Carma. We’re a little different in some vital ways:
Rest assured that Carma is a licensed Motor Dealer and Motor Repairer in NSW. You can find our licence numbers at the bottom of our website, and you can always double-check our credentials via the Service NSW licence verification page.
Perhaps the best proof, though, is the hundreds of customer reviews that show what it’s really like to buy a vehicle with Carma. Joel, who bought a used Subaru Forester with us, sums it up pretty well:
[The] whole process from when I picked out the car to receiving it was about 2-3 business days. Amazing customer service and very prompt responses with emails and calls.
And in the words of Ruben:
The customer service throughout the entire purchasing process is excellent. They proved to be professional, clear and honest about the information they provided.
Time to go car shopping? Find your car now.

The 8 most common mistakes when selling your car privately in Australia — from overpricing to the Notice of Disposal most sellers forget to lodge.

Cruise control can save 7–14% fuel on a flat highway. On a hilly road, it can cost you more. Here's when to use it and when to turn it off.
We’ve won and been finalists for awards in recognition of our efforts to provide the best care and innovation to our customers.














^ Estimated repayment calculation based on an average rate calculated across all fixed P&I used car loans offered by Carma preferred financiers to eligible applicants purchasing a vehicle aged 0-7 years from build date. The interest rates displayed are guides only and does not reflect an offer for any particular product or your situation and does not imply credit is available to you at this rate. Repayments as a result of this simulation can vary based on your personal circumstances including your credit worthiness. Final rate and all applications subject to financier approval. Fees and charges apply. The direct debit frequency options available from financiers may differ.
†within Greater Sydney
NSW Motor Dealer’s Licence: MD087139 • NSW Motor Vehicle Repairer: MVRL59465
© 2026 Carma
Cars worth knowing about. Tips and news worth reading. All direct to your inbox.