A car loan uses the vehicle as security and offers lower rates. A personal loan is unsecured and offers more flexibility. For most people buying a car through a dealer, a car loan is the cheaper option. For private sales, older cars, or situations where flexibility matters, a personal loan can make more sense. Here's how to decide.
The Core Differences
| Feature | Car Loan (Secured) | Personal Loan (Unsecured) |
|---|---|---|
| Interest rate | 5-8% p.a. | 7-14% p.a. |
| Security | Vehicle is collateral | No collateral |
| Ownership | Lender holds security interest | You own outright |
| Can sell car freely? | Need lender permission | Yes |
| Vehicle age restrictions | Often < 7-10 years old | None |
| Private sale eligible? | Sometimes | Yes |
| Balloon payment option | Available | Not available |
| Typical loan term | 1-7 years | 1-7 years |
Cost Comparison: $30,000 Over 5 Years
| Car Loan (6.5%) | Personal Loan (10.5%) | |
|---|---|---|
| Monthly repayment | $587 | $645 |
| Total interest paid | $5,220 | $8,680 |
| Total cost | $35,220 | $38,680 |
| Difference | $3,460 more |
On a $30,000 loan, the personal loan costs about $3,460 more in interest over 5 years. That's $58 more per month.
When to Choose a Car Loan
A secured car loan is typically better when:
-
You're buying from a dealer. Dealer vehicles are easy to finance with a car loan. The lender registers their interest on the PPSR (Personal Property Securities Register).
-
The car is less than 7-10 years old. Most lenders have age restrictions on secured car loans. Newer vehicles hold their value better, reducing the lender's risk.
-
You want the lowest rate. Secured loans carry lower rates because the lender can repossess the vehicle if you default.
-
You plan to keep the car for the full loan term. If you won't need to sell or trade in the car during the loan, the security interest doesn't inconvenience you.
When to Choose a Personal Loan
An unsecured personal loan is typically better when:
-
You're buying privately. Some car loans don't cover private sales, or the process is more complex. A personal loan works regardless of the seller.
-
The car is older. Buying a reliable $8,000-$15,000 used car that's 8-15 years old? Many car loans won't cover it. A personal loan has no vehicle restrictions.
-
You want flexibility to sell. With a personal loan, you own the car outright. You can sell it tomorrow without notifying anyone. With a car loan, you need the lender's permission.
-
The loan amount is small. On a $5,000-$10,000 loan, the interest rate difference translates to only a few hundred dollars over the life of the loan. The flexibility may be worth more.
Watch Out for Balloon Payments
Some car loans (especially through dealers) offer a "balloon payment" - a large lump sum due at the end of the loan term. This reduces your monthly repayments but leaves you with a significant final payment.
Example: $30,000 car loan, 5 years, 6.5%, $6,000 balloon
- Monthly repayment: $502 (lower than $587 without balloon)
- But you owe $6,000 at the end
- Total interest paid: $6,125 (more than without balloon)
Balloon payments can be useful for cash flow management, but they cost more in total interest and you must plan for the final payment. If you can't pay the balloon when it's due, you'll need to refinance (at potentially higher rates) or sell the car.
Dealer Finance: Proceed With Caution
Dealer finance (the loan offered by the car dealership) is convenient but often not the cheapest. Dealers act as intermediaries and may earn a commission on the finance, which gets built into your rate.
Always get a pre-approved loan from your bank or a comparison service before visiting the dealer. Use this as a benchmark. If the dealer can beat it, great. If not, use your pre-approval.
Other Options to Consider
Novated Lease
If your employer offers salary packaging, a novated lease lets you pay for a car using pre-tax income. This can be tax-effective for higher earners but involves complex calculations. It's worth investigating if your employer offers it.
Savings
The cheapest car is one you pay for in cash. No interest, no fees, no monthly repayments. If you can save the amount within a reasonable timeframe, this is almost always the best option.
Home Loan Redraw
If you have a home loan with a redraw facility and have made extra repayments, you could redraw funds to buy a car. The interest rate on your home loan (5-6%) is typically lower than any car loan or personal loan. However, you're turning an unsecured debt into one secured against your home, and extending the repayment term, which can cost more in total interest if you don't discipline yourself to repay it quickly.
Car Loan or Personal Loan - The Verdict
For most car purchases, a secured car loan offers the lowest interest rate and total cost. Choose a personal loan if you need flexibility (private sale, older car, ability to sell freely). Always compare multiple lenders, get pre-approval before visiting a dealer, and avoid balloon payments unless you have a clear plan to handle the final payment.
Related Guides
- How to Read a Comparison Rate - understand the true cost of your loan
- Credit Score Guide - how your score affects the rate you're offered
Frequently Asked Questions
See the numbers side by side
Use our comparison tools to find what suits you best.