A quick note before we get into it: this is general information only. It doesn’t take your personal circumstances into account, so it’s not financial advice. If you want help comparing your actual options, that’s exactly what a broker is for.
The upfront price gap (and why it matters for finance)
The difference we all see between new and used is the price on the windscreen. New cars generally cost more to buy, while a used version of the same model can come in noticeably cheaper, depending on its age and condition.
That gap matters more than it first appears, because it usually shapes how much you need to borrow. The bit you finance is often called the ‘amount financed’, which is simply the money you borrow after you’ve taken off any deposit or trade-in. A higher purchase price tends to mean a larger amount financed, and a larger amount financed generally means bigger repayments or a longer time paying it off.
Going used isn’t automatically the cheaper path once finance is involved, though. A lower purchase price can mean you borrow less overall, but things such as the interest rate, the loan term and the vehicle’s age all feed into the total cost too. We’ll get to those shortly.
For now, the takeaway is that the sticker price is where the maths starts, not where it ends.
Depreciation: the cost you don’t see on the sticker
Here’s a cost that never appears on any price tag but affects almost every car: depreciation. In plain terms, it’s how much value a car loses over time. Cars are one of those purchases that are generally worth less the day after you buy them than the day you drove off.
New cars tend to lose value fastest in their first few years. A car that feels brand new and top of the range can be worth quite a bit less by the time it’s a few years old, even if it’s barely been driven. Used cars, on the other hand, have often already taken that early hit. Someone else absorbed the steepest part of the drop, which is part of why used prices look more forgiving.
Why does depreciation matter when you’re financing?
This matters because the value of the car and the amount you still owe don’t always move in step. In some situations, a car can be worth less than the balance left on the loan, which is sometimes called being in ‘negative equity’.
It’s not a disaster, but it’s worth understanding, especially if you think you might sell or upgrade before the loan is paid off. It’s one of those quiet factors that’s easy to overlook when you’re focused on repayments and features.
Interest rates and loan terms
Two things quietly do a lot of the heavy lifting on any car loan: the interest rate and the loan term.
The interest rate is the cost of borrowing the money, usually shown as a percentage. The loan term is how long you take to pay it back, often somewhere between one and seven years. Together, these two shape both what you repay each month and what you pay in total over the life of the loan.
So where does new versus used come in?
Lenders sometimes treat the two differently. Some offer different rates depending on whether the car is new or used, and this can vary quite a bit from one lender to the next.
Older or higher-kilometre cars can also come with different conditions, like a shorter maximum term or a few extra requirements. That’s because lenders tend to factor in the age and value of the car itself.
The takeaway isn’t a fixed rule. The rate and term you’re offered depend on the lender, the vehicle and your own circumstances. That’s exactly why it pays to compare rather than assume, since a small difference in rate or term can add up over a few years.
Reliability and running costs
What a car costs to actually run can differ between new and used, and that feeds into your budget just as much as the loan does.
New cars usually come with a full manufacturer warranty, which means many repairs in the early years are covered rather than out of your pocket. You also tend to get the latest safety features, better fuel efficiency and that reassurance of knowing the car’s full history, because it doesn’t have one yet.
Used cars can be lighter on the purchase price, but the running-cost picture is a bit more mixed. Depending on the age, kilometres and service history, an older car might need more maintenance or the occasional bigger repair. That’s not a given, and a well-cared-for used car can run happily for years, but it’s worth keeping in the back of your mind.
The reason this matters is simple: your loan repayment and your running costs come out of the same budget.
A cheaper car to finance isn’t always the cheaper car to own, and a pricier one isn’t always the more expensive. It’s the full picture that counts.
Deposits, trade-ins and total cost
A couple of things can change the shape of your loan before it even starts: a deposit and a trade-in.
A deposit is money you put in upfront. A trade-in is when you hand over your current car and its value goes towards the new one. Both do the same basic job, which is reducing the amount you need to finance. Borrow less, and your repayments or your loan term generally come down with it.
It’s also worth separating two numbers that often get muddled. The ‘drive-away price’ is what it costs to get the car on the road, including things like on-road costs. The total cost over the life of the loan is a different figure, because it includes the interest you pay along the way. A car can look affordable at the dealership and still cost more overall once the loan runs its course.
That leads to one general point worth holding onto: a lower monthly repayment doesn’t automatically mean a lower total cost. Stretching a loan over a longer term can shrink the monthly figure while quietly adding to what you pay in the end. Neither approach is right or wrong. It just depends on whether you’re prioritising the monthly budget or the total spend, and it’s a useful thing to be clear on before you commit.
How a broker fits in
By now it’s probably clear that new versus used isn’t one decision, it’s a handful of them stacked together: price, depreciation, rates, terms, running costs and total spend. Weighing all of that up on your own can be a lot. That’s where a broker comes in.
In short, a broker compares finance options across a range of lenders on your behalf, rather than you approaching them one at a time. Instead of you filling in the same details over and over and trying to line up quotes yourself, a broker does the legwork and brings the options back to you.
A broker can also help you think through new versus used in the context of your own situation, including your budget, what you’re after and what you’re likely to be eligible for. They’re not there to push you one way or the other, but to help you see the trade-offs clearly and understand what each path might mean for you.
Mostly, it saves you time and hassle. Rather than juggling lenders and second-guessing whether you’ve found a good fit, you’ve got someone in your corner who does this every day.
The short version
If you take one thing away, let it be this: there’s no universal winner. New and used both stack up differently depending on what you’re after.
- New generally means a higher price and faster early depreciation, but usually comes with warranty cover, the latest features and fewer surprises.
- Used can mean a lower purchase price and a gentler depreciation hit, but running costs are more of a mixed bag depending on the car’s age and history.
- The rate and term you’re offered can differ between new and used, and vary from lender to lender, so it pays to compare rather than assume.
- Total cost beats the sticker price and the monthly figure. A smaller repayment doesn’t always mean you pay less overall, especially over a longer term.
- A broker can compare options across lenders and help you weigh it all up against your own budget and goals, saving you the legwork.
- The best choice really comes down to your priorities and your situation. If you’d like a hand comparing the options, that’s exactly what we’re here for.
If you need some support with your car finance, reach out to our team today.
This article is general information only and doesn’t take your personal circumstances into account, so it isn’t financial advice. Consider seeking advice suited to your own situation before making a decision.

