Fuel prices continue to influence what Australians buy. A car that uses less fuel can reduce weekly running costs, particularly for people who commute through busy urban areas or drive long distances every week.

Hybrid vehicles dominate this list because they can recover energy while slowing down and use electric assistance during low-speed driving. However, the lowest official fuel figure does not automatically mean a car will be the cheapest choice for every buyer.

Purchase price, servicing, insurance, driving conditions, cargo space and how long you plan to keep the car all matter.

The figures below are official combined-cycle figures where available. They are laboratory results, not guarantees of real-world fuel use.

Quick Comparison: Most Fuel-Efficient New Cars

Fuel-consumption figures vary by grade, body style, wheel size and drivetrain. Always check the exact specification of the vehicle you are considering.

How We Compared Fuel Efficiency

The ranking is based mainly on official combined fuel-consumption figures. We also considered how useful each vehicle is in everyday Australian driving.

A very small hatchback may use less fuel than a large SUV, but it may not provide enough boot space or towing capacity for a family. Similarly, a hybrid SUV with a slightly higher fuel figure may be more useful for a household that needs extra space.

Official figures are produced under controlled test conditions. Real-world fuel consumption can change because of:

• Traffic and road conditions
• Driving speed
• Weather and temperature
• Air-conditioning use
• Tyre pressure
• Vehicle load
• Roof racks and accessories
• Driving style
• Short trips with a cold engine

1. Toyota Yaris Hybrid

The Toyota Yaris Hybrid has one of the lowest official fuel-consumption figures available in Australia. Toyota lists around 3.3L/100km for the hybrid hatch.

Its compact size makes it easy to park and well suited to city driving. The hybrid system can use electric assistance during low-speed travel and recover energy during braking.

The Yaris is a sensible choice for singles, couples, students and city commuters. It is not designed for large families or people who regularly carry bulky equipment, but it can be very economical for everyday urban travel.

The small cabin and boot are its main limitations. Buyers should also compare the price difference between the hybrid and petrol versions to see whether the fuel saving justifies the higher purchase price.

Best for: City driving, commuting and first-car buyers.

2. Toyota Prius

The Toyota Prius remains closely associated with fuel efficiency. Its aerodynamic shape and petrol-electric hybrid system are designed to reduce fuel consumption in both urban and highway driving.

Toyota's Australian figures place the Prius at approximately 3.4–3.5L/100km, depending on the specific variant and test result.

The Prius is more spacious and comfortable for longer trips than a small hatchback. It suits commuters who want low fuel use without moving to a fully electric vehicle.

Its styling may not appeal to everyone, and buyers should compare the purchase price with other Toyota hybrid models. The Prius makes the most sense for people who drive regularly and intend to keep the car for several years.

Best for: Long-distance commuters wanting very low fuel use.

3. Toyota Corolla Hybrid

The Toyota Corolla Hybrid is available as a hatch or sedan and remains one of the most recognisable economical cars in Australia.

Its fuel consumption varies depending on the body style, variant and wheel package, but selected models use around 3.5–4.0L/100km under the official test cycle.

The Corolla offers a useful balance between efficiency, reliability, comfort and resale demand. It is more practical than a Yaris while still being easy to drive in the city.

The hatchback is easier to park and has a sportier shape, while the sedan offers a separate boot. Families should check rear-seat space before buying, especially if they regularly use rear-facing child seats.

Best for: Small families and commuters wanting a familiar hybrid.

4. Toyota Yaris Cross Hybrid

The Yaris Cross brings hybrid efficiency into a small-SUV body. Toyota lists fuel consumption of around 3.8L/100km for selected hybrid variants.

It offers a higher driving position, easier cabin access and more flexible cargo space than the Yaris hatch. This makes it attractive to buyers who want an SUV without moving to a larger, heavier vehicle.

The Yaris Cross suits city and suburban driving particularly well. It can carry shopping, a pram or weekend luggage more easily than a small hatchback.

The rear seat and boot are still limited compared with larger family SUVs. Buyers should also check whether the selected grade is front-wheel drive or all-wheel drive, as drivetrain differences can affect fuel use.

Best for: Buyers wanting small-SUV practicality with low fuel consumption.

5. Hyundai Kona Hybrid

The Hyundai Kona Hybrid uses a 1.6-litre petrol engine with electric assistance and has an official fuel figure of 3.9L/100km.

It is larger and more modern than many small hatchbacks, while remaining easy to drive around town. The Kona offers a practical cabin, contemporary technology and a higher driving position.

It can suit a small family, but buyers should check rear-seat space and boot capacity before committing. The Kona Hybrid is not a seven-seater and may feel limited for families with several child seats or large amounts of luggage.

The hybrid system is most useful in stop-start traffic, where the electric motor can assist the petrol engine and reduce unnecessary idling.

Best for: Urban buyers wanting a modern and efficient small SUV.

6. Kia Niro Hybrid

The Kia Niro Hybrid is designed specifically around efficient SUV ownership. It combines a petrol engine with electric assistance and uses around 4.0L/100km on the official combined cycle.

The Niro offers more driving height and cargo flexibility than a hatchback without the size of a large SUV. It can suit couples, small families and buyers who want a practical everyday vehicle.

Kia's warranty and capped-price servicing programs may also help buyers estimate long-term ownership costs. However, warranty and servicing conditions should always be checked before purchase.

The Niro is not the best choice for buyers who need seven seats, heavy towing ability or a large off-road vehicle.

Best for: Small families wanting an economical compact SUV.

7. Toyota Camry Hybrid

The Toyota Camry Hybrid uses around 4.0L/100km under the official combined test cycle. Unlike the smaller hatchbacks on this list, the Camry provides a larger cabin and a more comfortable long-distance driving experience.

It is well suited to commuters who spend hours on the road, as well as families who prefer a sedan rather than an SUV. The rear seat is spacious, and the boot is useful for everyday luggage.

The Camry is longer and wider than a Corolla, which can make parking in tight areas more difficult. It also lacks the raised driving position that many SUV buyers prefer.

For buyers who regularly travel on highways but still want low fuel consumption, the Camry Hybrid remains a strong option.

Best for: Comfortable commuting and family highway travel.

8. MG3 Hybrid+

The MG3 Hybrid+ offers hybrid technology in a small hatchback at a generally more accessible price point than many established hybrid competitors.

Its official combined fuel-consumption figure is around 4.3L/100km. The MG3 is easy to drive, compact in traffic and suitable for buyers who mainly travel around town.

The lower purchase price can make it attractive to people who want a new hybrid without moving into a more expensive SUV. However, buyers should compare equipment, warranty conditions, servicing costs and long-term resale value.

The MG3 is best suited to small households. Its rear-seat space and cargo area are not designed for large families or regular long-distance luggage.

Best for: Budget-conscious buyers wanting a new hybrid hatchback.

9. Toyota RAV4 Hybrid

The Toyota RAV4 Hybrid is one of the most practical fuel-efficient SUVs for Australian families. The new-generation model is rated at 4.5L/100km for 2WD variants and 4.6L/100km for AWD variants.

The RAV4 offers a comfortable cabin, useful boot space and a higher driving position. It is more suitable for families than the smaller Yaris Cross or Kona, particularly for buyers carrying prams, school bags and weekend luggage.

The hybrid system works well in urban driving, while the available all-wheel-drive variants can provide additional traction in certain conditions.

The RAV4 is usually more expensive than small hybrid cars, and strong demand can affect availability and delivery times.

Best for: Families wanting space, efficiency and SUV practicality.

10. Kia Sportage Hybrid

The Kia Sportage Hybrid offers more space than a small SUV while maintaining a relatively low official fuel figure. The front-wheel-drive hybrid version is listed at around 4.9L/100km, while all-wheel-drive versions can use more.

The Sportage is suitable for families who need a comfortable rear seat, useful boot space and modern safety and convenience features. It is also more manageable in daily traffic than a large seven-seat SUV.

Buyers should compare the FWD and AWD versions carefully. All-wheel drive may provide additional traction, but it can increase weight, purchase price and fuel consumption.

Best for: Families wanting a larger medium SUV with hybrid efficiency.

Are Hybrid Cars Always Cheaper to Run?

Not necessarily. Hybrid cars usually use less petrol in urban conditions, but the purchase price may be higher than an equivalent petrol vehicle.

A hybrid may save more fuel when:

• You drive in stop-start traffic
• You cover a high number of kilometres
• You keep the car for several years
• You maintain the vehicle correctly
• You avoid harsh acceleration and unnecessary idling

Highway driving at constant speeds may reduce the fuel-saving advantage because the petrol engine does more of the work.

A plug-in hybrid can use even less petrol when regularly charged, but home charging, purchase price and battery warranty also need to be considered.

Which Fuel-Efficient Car Is Best for You?

Choose a small hatchback such as the Toyota Yaris Hybrid, Toyota Prius or MG3 Hybrid+ if you mainly drive alone or with one passenger.

Choose a compact SUV such as the Toyota Yaris Cross, Hyundai Kona Hybrid or Kia Niro if you want extra ground clearance and cargo flexibility.

Choose the Toyota RAV4 Hybrid or Kia Sportage Hybrid if you need more space for children, luggage and everyday family use.

Choose the Toyota Camry Hybrid if you regularly travel long distances and prefer a comfortable sedan.

What Should You Check Before Buying?

Before choosing a fuel-efficient new car, compare:

• Official fuel-consumption figure
• Real-world owner reviews
• Purchase price
• Warranty length and conditions
• Capped-price servicing
• Insurance costs
• Boot and rear-seat space
• Child-seat compatibility
• Hybrid battery warranty
• Availability and delivery time
• Resale value
• Petrol grade required

Do not select a car only because it has the lowest number in a brochure. The right vehicle must also fit your passengers, driving routine and budget.

Frequently Asked Questions

What is the most fuel-efficient new car in Australia in 2026?

The Toyota Yaris Hybrid has one of the lowest official combined fuel-consumption figures, at around 3.3L/100km. The Toyota Prius and Corolla Hybrid are also highly efficient.

Which fuel-efficient car is best for a family?

The Toyota RAV4 Hybrid is a practical choice for many families because it combines low fuel consumption with useful rear-seat and boot space. Larger families may prefer a seven-seat hybrid SUV.

Are hybrid cars cheaper to run than petrol cars?

They can be, especially in urban traffic. However, the total saving depends on the vehicle's purchase price, fuel prices, servicing, insurance and how many kilometres you drive.

What is the best fuel-efficient SUV in Australia?

The best option depends on size. The Toyota Yaris Cross and Hyundai Kona suit smaller households, while the Toyota RAV4 and Kia Sportage offer more family space.

Do hybrid cars need to be plugged in?

Standard hybrid vehicles do not need to be plugged in. They recharge their batteries through the petrol engine and regenerative braking. Plug-in hybrids are different and can be charged from an external power source.

Compare New Cars on Auto Buyers Guide

Fuel economy is only one part of choosing a new car. You should also compare safety, space, price, warranty, servicing and everyday comfort.

On Auto Buyers Guide, you can research new, demo and used vehicles, compare models and explore listings from licensed dealers.

You can also browse our guide to the best small SUVs in Australia when comparing economical SUVs for city and family use.

The most fuel-efficient car is not always the best car for every driver. The best choice is the model that delivers low running costs while still meeting your space, comfort and driving needs.