Opinion: The best small cars you can buy for under $40,000

In 2026, choosing a small car feels almost like going against the grain. While much of the Australian new-car market seems determined to convince buyers that they need a large SUV just to complete the school run, small cars are quietly getting on with the job. They are easier to park, generally cheaper to run and, in many cases, offer more than enough space for everyday driving.

And if the budget is capped at $40,000, there is still plenty of choice. The small-car market now covers everything from petrol-powered hatchbacks and sedans to hybrids and fully electric models. Some are sensible choices, some are surprisingly premium, and a few are simply more fun than they have any right to be. If I had $40,000 to spend on a small car, these are the ones I’d be looking at.

Kia K4– $32,090 

The Kia K4 would be near the top of my list. It is one of the newer entrants to Australia’s small-car market, and that freshness shows. The K4 has sharp styling, a well-equipped cabin and enough space to make it feel like a car you can actually live with rather than something designed purely to squeeze into the smallest possible parking space.

The entry-level K4 starts at just over $32,000 before on-road costs, while several variants remain below the $40,000 mark. Both the hatchback and sedan can be bought for under $40,000, so buyers aren’t restricted to one body style. The naturally aspirated 2.0-litre engine isn’t going to turn it into a hot hatch, but that’s hardly the point. The K4’s appeal is that it does most things reasonably well without demanding a compromise in another area.

There is also the seven-year warranty, which is difficult to ignore when you’re spending this sort of money.

Cars24 Australia says it feels like one of the most complete small-car packages currently available.

Volkswagen Golf– $38,690 

The Volkswagen Golf is the car I’d choose if I wanted my $40,000 small car to feel a little more expensive than it actually is. The Golf has always been good at this. It doesn’t need enormous wheels, excessive styling or a dashboard covered in screens to feel sophisticated. List prices for the Volkswagen Golf in Australia range from $38,690 before on-road expenses to $71,990 for high-performance models. However, the 110TSI Life is available at a special driveaway price of $37,990. 

It rides well, handles neatly and has a cabin that still feels a class above many mainstream rivals. The problem is the budget. At around $40,000, you’re getting close to the entry point of the Golf range, so there isn’t much room to get carried away with options. But if you value refinement and don’t mind spending almost the entire budget, the Golf remains a compelling choice.

Cars24 Australia says it is the closest thing here to a small premium car without actually buying a premium badge.

Toyota Corolla– $32,110 

The Toyota Corolla is probably the least surprising car on this list, which is precisely why it deserves to be here. It has been one of Australia’s default small-car choices for decades, and the current Corolla’s hybrid powertrain gives it a particularly strong argument for buyers who spend a lot of time in urban traffic. Depending on whether you select a sedan or hatchback variant, the Toyota Corolla price in Australia ranges from $32,110 to $40,450 before on-road expenses.

It is easy to drive, economical and relatively inexpensive to run. You don’t need to learn a new driving philosophy or spend three weeks watching YouTube videos to understand how everything works.

The Corolla isn’t perfect. The cabin can feel tight, the technology isn’t the newest in the segment and prices have climbed considerably. Still, there is something reassuring about a car that simply does what it says on the tin.

Cars24 Australia says that for low-stress, low-fuss motoring, the Corolla remains difficult to dismiss.

Mazda 3– $31,410

The Mazda 3 has been around long enough to be considered an old hand in this segment, but it hasn’t aged badly. In fact, its relatively conventional approach is part of its appeal. You still get a proper petrol engine, a nicely finished cabin and steering and handling that remind you that driving can be more than simply moving between two points.

The Mazda 3 also looks considerably more expensive than it is. That’s particularly true inside, where the cabin has a more premium feel than you might expect from a car ranging from $31,410 to $43,610 before on-road expenses. Promotional drive-away deals for entry-level model Pure, start at $32,990.

I’d probably be tempted by a G25 variant if the budget allowed. The 2.5-litre engine brings more punch than the smaller 2.0-litre unit without turning the Mazda 3 into something unnecessarily sporty.

The downside? The interior isn’t spacious, and some of the technology is beginning to show its age. But if you still enjoy driving, those are compromises I’d be willing to make.

Cars24 Australia says it is proof that a small car doesn’t have to be boring.

BYD Atto 1– $23,990 

At the other end of the scale is the BYD Atto 1. The EV starts well below $30,000, starting at $23,990 before on-road costs for the base Essential variant. Depending on your state and grade of choice, drive-away costs typically fall between $25,700 and $31,200. That makes it an interesting proposition for buyers who have a lesser budget than 40k.

It is compact, surprisingly spacious for its size and fully electric. That combination makes a lot of sense for city dwellers who spend most of their time commuting, shopping and navigating increasingly crowded urban streets.

There are compromises, particularly around driving range and some of the safety and cabin technology, but the price changes the conversation.

You don’t necessarily need to spend $40,000 to get into a modern small car anymore.

Cars24 Australia says it leaves enough money in the bank for fuel, registration, insurance and perhaps the occasional coffee.

If you’re shopping for a used car, CARS24 Australia has plenty of examples of used cars available for under $40,000.