Ameer Randolph
With rising fuel costs, it's no surprise that fuel efficiency is a key consideration for car buyers. Fuel economy is measured in miles per gallon (MPG) and is influenced by factors such as engine type, driving style, and vehicle maintenance. While electric vehicles (EVs) are renowned for their efficiency, they may not be suitable for everyone. Fortunately, there are plenty of fuel-efficient options, including hybrids and plug-in hybrids, that offer both performance and economy. In this overview, we'll explore the top fuel-efficient cars and SUVs, highlighting their MPG ratings, features, and any available incentives to help you make an informed decision when choosing your next vehicle.
Fuel-Efficient Cars
| Characteristics | Values |
|---|---|
| Toyota Prius | 57/56/57 mpg |
| Toyota Prius Prime | 127 mpg-e combined average for electric and gas driving and 52 mpg in Hybrid mode |
| Hyundai Elantra Hybrid | 51/58/54 mpg |
| Kia Niro Hybrid | 53/54/53 mpg |
| Toyota Camry Hybrid | 51/53/52 mpg |
| Toyota Corolla Hybrid | 53/46/50 mpg |
| Lexus ES Hybrid | N/A |
| Vauxhall Corsa | N/A |
| Skoda Octavia | N/A |
| Suzuki Swift | N/A |
| BMW 330e | Over 100 mpg |
| Toyota Corolla Cross Hybrid | Over 40 mpg |
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What You'll Learn
Hybrid, turbocharger and electric technology
Hybrid, turbocharger, and electric technologies have all been touted as ways to improve fuel economy. Here is a breakdown of each:
Hybrid Technology
Hybrid vehicles combine a traditional internal combustion engine with an electric motor, offering improved fuel efficiency and reduced emissions compared to conventional cars. The Toyota Prius is a well-known example of a hybrid car, with the latest model offering increased power and style while maintaining its efficient fuel economy. The 2025 Toyota Crown is another example, capable of running solely on battery power and using its engine to charge the battery, extending the range of a gallon of gas. Honda has also positioned itself as a leader in hybrid technology, with the 2025 Honda Civic Hybrid offering a blend of fuel efficiency, performance, and reasonable pricing.
Turbocharger Technology
Turbochargers are now commonplace in modern vehicles, and they play a significant role in improving fuel economy. Turbocharged engines provide excellent torque output at lower engine speeds, allowing for early shifting to higher gears, which reduces fuel consumption. Additionally, turbocharged vehicles are designed to optimize fuel efficiency through aerodynamic improvements and advanced automatic gearboxes. While turbocharged engines can deliver on fuel economy, it is important to note that driving habits also play a role. Sensible driving habits, such as avoiding erratic braking and acceleration, driving at lower speeds, and proper "warm-up" and "cool-down" periods, can further enhance fuel efficiency in turbocharged cars.
Electric Technology
Electric vehicles (EVs) have gained attention for their potential to improve fuel economy and reduce emissions. EVs use electricity as their power source, eliminating tailpipe emissions and contributing to a more sustainable transportation system. The high efficiency of electric-drive components in EVs results in dramatic fuel cost reductions. Today's EVs offer sufficient range to cover typical daily travel, with most models providing over 200 miles on a fully charged battery. Federal incentives, such as the Clean Vehicle Tax Credits, also make EVs more accessible to consumers. However, it is important to consider the carbon emissions associated with generating the electricity used to charge EVs, which can vary depending on the energy sources in a particular region.
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Fuel efficiency tests
Fuel efficiency is a key consideration when choosing a new car. While modern vehicles are generally more efficient than older models, some cars outperform others.
During a test, a vehicle's drive wheels are placed on a machine called a dynamometer, which simulates the driving environment. Engineers adjust the amount of energy required to move the rollers to account for wind resistance and the vehicle's weight. A driver then runs the vehicle through standardised driving routines, or cycles, which simulate "typical" trips in the city or on the highway. Each cycle specifies the speed the vehicle must travel at during each second of the test. For vehicles using carbon-based fuels, a hose is connected to the tailpipe to collect the engine exhaust, and the carbon in the exhaust is measured to calculate the amount of fuel burned.
While fuel efficiency tests are important, it's worth noting that a car's fuel economy will vary depending on the driver's style, and official fuel consumption figures may not always match up with real-world driving experiences.
Now, when it comes to specific car models that offer good fuel economy, here are some options to consider:
- Toyota Prius: The 2024 Toyota Prius offers better fuel economy, driving dynamics, and up to 196 horsepower. The base 194-hp LE trim with FWD is the most efficient at 57/56/57 mpg. The 2023 model year also saw a redesign, giving it a dramatic swept-back exterior.
- Hyundai Elantra: The 2024 Hyundai Elantra offers a variety of engine and transmission choices. Among the non-hybrid models, the base SE with a 147-hp, 2.0-litre four-cylinder engine and CVT is the most fuel-efficient at 32/41/36 mpg. The hybrid model is also efficient, with a total system output of 139 hp and fuel efficiency ratings of 51/58/54 mpg for the base Blue variant.
- Kia Niro: The Kia Niro is available with a hybrid, plug-in hybrid, or all-electric powertrain. The hybrid model's base FE trim offers 139 hp and fuel efficiency ratings of 53/54/53 mpg. The 2024 Niro Plug-In Hybrid has a 1.6-litre four-cylinder engine and two electric motors, producing a total of 180 hp.
- BMW 3 Series: The 330e plug-in hybrid can run on pure electric power for around 30 miles and offers impressive fuel economy, with a return of over 100 miles per gallon on paper.
- Toyota Corolla: The return of the Corolla to the UK market has been well-received, with both the estate and hatchback versions offering good driving dynamics and hybrid options.
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Fuel-efficient SUVs
Fuel efficiency is an important factor to consider when buying a new car. While SUVs were once among the least efficient vehicles on the road, this has changed in recent years. Automakers have shifted to more car-like platforms, making SUVs more spacious and more efficient. With new construction methods and advanced powertrain technology, SUVs are more efficient than ever before.
If you are looking for a fuel-efficient SUV, there are a variety of options to choose from. Firstly, it is important to note that the most economical vehicles tend to be small or midsize, either front- or two-wheel-drive, and feature a smaller engine.
- 2025 Toyota RAV4 Hybrid AWD: This is Toyota's second most fuel-efficient SUV, with an EPA rating of 41 mpg in the city. It offers better power, acceleration, and fuel economy than the regular SUV. It is also more refined and quicker to accelerate from a stoplight. While the RAV4 has an occasionally choppy ride and a generic look, it is still a great option for those seeking a compact hybrid SUV with low cost and high mpg.
- 2025 Lexus NX 350h AWD: This Lexus model offers a highly fuel-efficient set of electric motors and a 2.5-litre I-4 engine. It is also one of the most plush and comfortable SUVs on the market, making it a practical choice.
- 2025 Hyundai Tucson Hybrid Blue: This SUV is relatively inexpensive and offers a spacious interior and good looks. While it lags behind its rivals by upwards of 7 mpg, it is still a solid choice for those seeking a hybrid SUV.
- 2025 Toyota Crown Signia AWD: With fuel efficiency nearly topping 40 mpg, this midsize crossover SUV is an excellent choice for those seeking a premium vehicle. Its longer, lower-looking aesthetic sets it apart from other SUVs, and it comes loaded with Toyota Safety Sense tech features.
- 2024 Toyota Venza: This comfortable midsize 5-passenger SUV offers great fuel efficiency thanks to its standard hybrid powertrain.
- 2025 Nissan Rogue: This compact SUV offers one of the best fuel economy ratings in its class, as well as a spacious interior with plenty of cargo space.
- 2025 Hyundai Kona: This subcompact SUV was redesigned for the 2024 model year and carries over into 2025. It offers a spacious cabin, multiple engine options, and available all-wheel drive. The front-wheel-drive model with the base engine is the most efficient.
- 2025 Chevrolet Trailblazer: This subcompact SUV offers a roomy interior, affordable pricing, and solid fuel economy. The 1.2-litre three-cylinder engine is the most efficient option.
- 2014 Mitsubishi Outlander: This used SUV is a great option for families, offering a third row of seating for seven passengers. It has a fuel economy rating of 25 mpg in the city and 31 mpg on the highway.
- 2014 Nissan Rogue: This used SUV offers excellent fuel economy, a comfortable cabin, a spacious interior, and an optional third row of seating. It has a fuel economy rating of 26 mpg in the city and 33 mpg on the highway.
It is worth noting that there are also hybrid and plug-in hybrid options available, such as the Ford Escape Hybrid, which offer a substantial jump in fuel economy but also come with a higher price tag. Additionally, diesel engines, such as those found in the GMC Sierra, can offer good fuel economy, but they also come with added expenses and annoyances, such as diesel particulate filtration and DEF.
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Tips to improve fuel efficiency
When it comes to choosing a fuel-efficient car, diesel cars are generally more economical than petrol cars. However, with the rise in popularity of hybrid cars, you can now get the best of both worlds. Some of the most fuel-efficient cars on the market include the Toyota Prius, the BMW 3 Series 330e plug-in hybrid, and the Vauxhall Corsa.
Now, here are some tips to improve fuel efficiency:
Maintain Optimal Tyre Pressure
Underinflated tyres can increase fuel consumption by up to 10%. Check your owner's manual or the sticker on the inside of the driver's door for the correct PSI. Properly inflated tyres will also last longer and are safer.
Reduce Unnecessary Weight
Every extra 50kg of weight in your car can increase fuel consumption by 2%. Remove any unnecessary items from your boot or cargo area, such as forgotten backpacks, sports equipment, or extra books. Even removing clutter from inside your car can make a difference.
Minimise Wind Resistance
Remove roof racks or cargo boxes when not in use, as they can significantly reduce fuel efficiency at highway speeds. For example, a roof-mounted cargo box can decrease fuel economy by 8% to 25%. If possible, opt for a rear-mounted cargo box instead, which typically has a much lower impact on fuel efficiency.
Drive at Optimal Speeds
Driving at speeds over 80 km/h increases wind resistance, leading to higher fuel consumption. Maintaining a steady speed within the speed limit can also help improve fuel efficiency. Rapid acceleration and hard braking can reduce your gas mileage by 10% to 40%. If you have a manual car, try to maintain a higher gear when appropriate, as this will reduce the number of revolutions per minute (RPM) and, in turn, reduce fuel consumption.
Keep Your Car Well-Maintained
Regular maintenance can help improve fuel efficiency. Ensure your air filters, spark plugs, and connections are clean and in good condition. It is also essential to keep your engine well-maintained, as a well-maintained engine can improve fuel efficiency and prolong the life of your vehicle.
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Best fuel economy ratings
Fuel efficiency is a key consideration for many car buyers, and it's an area where modern vehicles are outperforming their predecessors. When it comes to measuring fuel efficiency, the standard unit is miles per gallon (MPG), indicating how far a car can travel on a single gallon of fuel.
While electric vehicles (EVs) are hard to beat for efficiency, they are not the right choice for everyone. Hybrids, on the other hand, are a popular choice, with their combination of gasoline-fuelled internal combustion engines and electric motors. The Toyota Prius is a well-known hybrid model, with the plug-in version offering an impressive 235.4 mpg, while the self-charging version still achieves around 70 mpg. The 2024 Toyota Prius has improved fuel economy, better driving dynamics, and up to 196 horsepower. The Toyota Corolla, which comes in both sedan and hatchback styles, also offers a hybrid powertrain. The Lexus ES Hybrid is another option in this category, providing comfort, user-friendly features, and upscale materials.
The Hyundai Tucson Plug-in Hybrid is a good choice, with a combined 261 horsepower and fuel economy of 80 MPGe and 35 mpg. The Sorento Plug-In Hybrid, also by Kia, offers similar specifications, with slightly lower ratings of 79 MGPe and 34 mpg combined. The Kia Niro Plug-In Hybrid is another subcompact crossover SUV worth considering, with fantastic fuel economy ratings and a lower price point than its competitors.
For those seeking a sedan, the 2024 Camry Hybrid is a winner, with a 2.5-litre four-cylinder engine, two electric motors, and a combined 208 horsepower. It achieves 52 mpg, according to the EPA. The Honda Accord is another hybrid sedan that is spacious, refined, and well-built.
It's worth noting that driving habits and conditions can significantly impact fuel economy. For instance, driving with underinflated tires, speeding, and aggressive acceleration can all reduce fuel efficiency.
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Frequently asked questions
Some of the most fuel-efficient cars include the Toyota Prius, the Hyundai Elantra Hybrid, the Kia Niro Hybrid, the Toyota Camry Hybrid, and the Toyota Corolla Hybrid.
A good MPG rating depends on the category of the vehicle. For example, an SUV with 21 mpg would be competitive, whereas a compact car with the same rating would not.
Yes, the Lexus ES Hybrid is a luxury midsize sedan with excellent fuel efficiency.
Driving style can significantly impact fuel economy. For example, aggressive driving behaviours like rapid acceleration and speeding can reduce fuel efficiency, while driving smoothly and using cruise control can improve fuel economy.
Yes, the Skoda Octavia is a great family car with lots of interior space and excellent fuel economy.
