Katerina Swanson
Fuel efficiency is one of the most important factors to consider when buying a new car. While modern vehicles are far more efficient than older models, some cars outperform others. This answer will discuss the cars with the highest fuel economy in miles per gallon (MPG) and provide tips for maximising fuel efficiency.
The Toyota Prius is a well-known hybrid vehicle with excellent fuel efficiency. The 2023 model has an MPG of up to 57, while the 2025 model has an EPA rating of 127 MPGe and 52 mpg. The Hyundai Elantra Hybrid is another efficient option, with an MPG of 51-58. The Kia Niro, a hybrid SUV, also offers good fuel economy, with an MPG of 53-54. The Toyota Camry Hybrid and the Toyota Corolla Hybrid are also worth considering, with MPGs of 51-53 and 53-50, respectively.
Some non-hybrid vehicles with good fuel economy include the Nissan Versa, the Honda Accord, and the Skoda Octavia. The Octavia, in particular, is praised for its incredible fuel economy and class-leading reliability at a reasonable price.
To maximise fuel efficiency, it is important to reduce weight and wind resistance by removing unnecessary items from the car. Additionally, avoid idling and shorter trips that don't allow the engine to warm up properly. Maintaining a steady speed and acceleration on the motorway can also improve fuel economy.
| Characteristics | Values |
|---|---|
| Car with the highest fuel economy | Toyota Prius Prime |
| Fuel economy ratings | 127 mpg-equivalent |
| Engine | 1.8-liter four-cylinder |
| Transmission | Six-speed manual |
| Electric motor | Yes |
| Battery | Lithium-ion |
| Drive | All-wheel drive |
| MPG | 57/56/57 |
| Other fuel-efficient cars | Hyundai Elantra Hybrid, Kia Niro Hybrid, Toyota Camry Hybrid, Toyota Corolla Hybrid, Honda Insight, Honda Accord, Hyundai Ioniq Blue hybrid, Skoda Octavia, VW Golf |
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Toyota Prius
The Toyota Prius is a hybrid vehicle, meaning it combines a combustion engine with an electric motor to deliver impressive fuel efficiency. The 2025 Toyota Prius Plug-In Hybrid is the most efficient model to date, with EPA ratings of 127 MPGe and 52 mpg.
The 2024 Toyota Prius has been praised for its improved fuel economy, offering up to 196 horsepower. The 2022 Toyota Prius also boasts impressive fuel efficiency, with EPA-estimated fuel economy ratings of 54 MPG in the city and 50 MPG on the highway for the LE, XLE, Limited, and Nightshade Edition models. The LE AWD-e, XLE AWD-e, and Nightshade Edition AWD-e models offer slightly lower fuel economy, with EPA estimates of 51 MPG in the city and 47 MPG on the highway.
The Prius' fuel economy is further enhanced by its standard 1.8L four-cylinder Aluminum DOHC 16-valve engine with Variable Timing with intelligence (VVT-i). The Eco trim level takes fuel efficiency even further, boosting the combined mpg rating to 56. The 2021 Prius is also available with a 1.8L four-cylinder engine and electric motor, while the 2022 Prius L Eco model offers an impressive 58 MPG in the city and 53 MPG on the highway.
The Toyota Prius has consistently pushed the boundaries of green technology, and its fuel economy continues to set new standards. The vehicle's performance, stylish interior, and state-of-the-art technology have earned it rave reviews from consumers and critics alike. The Prius is a testament to Toyota's commitment to innovation and sustainability, making it a top choice for eco-conscious drivers.
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Hyundai Elantra Hybrid
The Hyundai Elantra Hybrid is one of the most affordable hybrid cars on the market, as well as one of the most efficient. The 2025 model has a starting price of $25,450, making it the cheapest car with the best gas mileage. The 2024 model is priced at $30,499.
The Elantra Hybrid shares its powertrain with the Kia Niro. It has a 1.6-litre four-cylinder engine and a six-speed dual-clutch automatic transmission. The 2023 model gets 6-6.7L/100km on local roads in Canada. The 2024 model has a posted average economy of 4.7 L/100 km, which is 2.0 L/100 km better than the regular Elantra. Natural Resources Canada estimates that the 2024 model will use about 4.8 L/100 km when driving in the city and 4.5 L/100 km for highway driving.
The 2025 Hyundai Elantra Hybrid is available in two distinct trims, each offering remarkable fuel efficiency: Blue Trim and Limited Trim. The Blue Trim is designed with maximum fuel economy in mind, achieving an EPA-estimated 54 MPG combined (51 City/58 Highway). The Limited Trim offers additional premium features while maintaining excellent fuel efficiency with an EPA-estimated 50 MPG combined (49 City/52 Highway). Both trims come equipped with an 11.0-gallon fuel tank, which, combined with the vehicle's outstanding fuel efficiency, allows for extended driving ranges and minimises the frequency of refuelling stops.
The 2024 Hyundai Elantra Hybrid Luxury Two-Tone Interior model features a total of eight airbags, a standard anti-collision system, standard lane departure warning, and standard hill holder. Additional safety equipment includes LED, Complex Surface, Auto Highbeam headlights, and rear camera parking assistance. This model is also equipped with an 8-speaker Bose audio system and a 10.30-inch colour touchscreen display with voice-activating capabilities for audio, phone, and navigation.
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Kia Niro Hybrid
The Kia Niro is a hybrid SUV that offers a comfortable, roomy cabin, modern styling, and great technology features. It is a good option for those looking for a fuel-efficient vehicle with a sleek and modern aesthetic. The 2025 Kia Niro Hybrid starts at $28,365 and goes up to $42,165, depending on the trim and options.
The Niro is a gas/electric hybrid that serves as a sensible and more affordable alternative to plug-in hybrids or battery-fed electric vehicles. Kia offers the Niro in three electrified variants, with the Niro hybrid being the most affordable and convenient option as it does not require plug-in charging. The Niro is equipped with a 1.6-litre four-cylinder engine and comes with a six-speed dual-clutch automatic transmission. It delivers 53 mpg in mixed driving and has an EPA-estimated monthly fuel cost of about $83.
The Niro Hybrid provides a spacious cabin with 41.5 inches of front legroom and best-in-class 39.8 inches of rear legroom, surpassing its competitors. The cargo area is also generous, offering 22.8 cubic feet of space behind the back seats and expanding to 63.7 cubic feet with the rear seats folded down. The interior design is sculptural and contemporary, with recycled materials and natural fibres such as eucalyptus leaves used for the headliner and upholstery. The ambient lighting and rotary shift knob add an upscale touch to the cabin.
The Kia Niro Hybrid comes with a range of convenient and technological features. It offers a touchscreen interface for navigation, diagnostic, entertainment, and vehicle information features. The available Digital Key 2.0 allows for keyless entry and virtual key sharing through the Kia Access App. Kia Connect pairs with Amazon Alexa for voice commands and remote start and climate control. The vehicle also supports wireless smartphone charging and Apple CarPlay and Android Auto compatibility.
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Toyota Camry Hybrid
The Toyota Camry has been a popular choice for those seeking a fuel-efficient vehicle for several years. The 2020 Toyota Camry, for example, offers an impressive EPA-estimated 34 MPG combined fuel economy, while the Toyota Camry Hybrid provides even greater efficiency, with a 52 MPG combined rating.
The 2023 Toyota Camry also offers multiple hybrid iterations, with the 2.5L Engine option providing an EPA-Estimated fuel economy of 51 mpg city and 53 mpg highway. The 2023 Camry's 3-mode drive shift feature allows drivers to toggle between ECO, Normal, and Sport modes to further optimize fuel efficiency.
The 2025 Toyota Camry has undergone a redesign and is now offered solely as a hybrid vehicle. This new all-hybrid lineup combines reliability with impressive fuel efficiency, thanks to its updated hybrid setup. The front-wheel-drive Camry LE delivers 51 mpg city, 50 mpg highway, and 51 mpg combined. The AWD option for the 2025 Camry Hybrid is also new, and it beats the previous-generation AWD Camry in terms of both power and fuel economy. The base model, the Camry LE AWD, offers 51 mpg city, 49 mpg highway, and 50 mpg combined EPA estimates.
The 2025 Toyota Camry Hybrid's impressive fuel economy extends across all trim levels, with the front-wheel-drive Camry SE, Camry XLE, and Camry XSE delivering 48 mpg city, 47 mpg highway, and 47 mpg combined. The AWD variants of these trim levels are rated for 46 mpg in all three EPA driving cycles, while the Camry XSE AWD achieves 44 mpg city, 43 mpg highway, and 44 mpg combined.
The Toyota Camry Hybrid's fuel economy is further highlighted when compared to its competitors. The Camry's AWD-hybrid combination, for instance, gives it an advantage over its rival, the Honda Accord, which does not offer AWD on any of its powertrains.
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Honda Insight
The Honda Insight is a compact car with a highly efficient hybrid performance, exceptional gas mileage, and impressive range. The 2022 Honda Insight EX delivers a fuel-efficient rating of up to an EPA-estimated 55 city and 49 highway mpg with a 52 combined mpg. The Touring model gets an EPA-estimated 51 city and 45 highway mpg with a 48 combined mpg. This means that the Honda Insight can achieve a driving range of around 583 city miles and around 519.4 highway miles per tank of gas.
The Honda Insight's impressive fuel economy is due to its intelligent, highly advanced hybrid powertrain, which includes a 1.5L Atkinson-cycle 4-cylinder engine with an electric motor and a standard eCVT. This combination allows the engine to spin slower and run less during highway driving, providing more power to the battery and resulting in more battery-only time. At speeds of 65 mph or below, the Honda Insight can achieve 50 mpg or higher. However, at higher speeds of 75-85 mph, the engine has to spin more frequently and at a faster rate, which can impact fuel economy, resulting in an estimated 35-40 mpg at these speeds.
Compared to other hybrid vehicles, the Honda Insight offers superior fuel efficiency. For example, the Kia Niro, a hybrid SUV, offers good fuel economy but falls short in terms of cargo space. The Hyundai Elantra Hybrid is another affordable and efficient option, but it may not be the most aesthetically pleasing or athletic small hybrid car. The Toyota Corolla Hybrid, while providing excellent value and fuel economy, may not be the most exciting option.
The Honda Insight's fuel economy is also influenced by various factors such as driving conditions, maintenance, battery-pack age and condition, and individual driving habits. Additionally, weight and wind resistance can impact fuel efficiency, so removing unnecessary items from the car can further enhance the Honda Insight's impressive fuel economy. Overall, the Honda Insight is an excellent choice for those seeking a compact car with exceptional fuel efficiency, a dynamic driving experience, and a decently sized fuel tank capacity.
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Frequently asked questions
The 2024 Toyota Prius Prime has EPA ratings of 127 MPGe and 52 mpg, making it the most fuel-efficient car you can buy.
Other cars with high fuel economy include the Hyundai Elantra Hybrid, Kia Niro Hybrid, Toyota Camry Hybrid, and Toyota Corolla Hybrid.
Here are some tips to improve your car's fuel economy:
- Remove any unnecessary items from your car to reduce weight and wind resistance.
- Avoid idling, as it wastes fuel.
- Maintain a constant speed and acceleration when driving on the motorway.
- Avoid taking short trips, as your engine needs time to warm up and reach optimal efficiency.
