Discover The Flex Models That Offer The Greatest Energy Efficiency In 2024 Amid Rising Fuel Prices
With rising fuel prices, fuel economy has become a priority for Brazilian drivers. With that in mind, Inmetro (National Institute of Metrology, Quality and Technology) released its annual list of the most fuel-efficient flex cars for 2024, according to the Brazilian Vehicle Labeling Program (PBEV), according to the site IstoÉ.
The ranking assesses the energy efficiency of various vehicle models, allowing consumers to choose options that help save at the gas station while also contributing to environmental preservation. If you are looking for a new car, keep reading to learn about the most fuel-efficient flex vehicles available in Brazil!
How Does Inmetro Evaluate Fuel Consumption?
The Brazilian Vehicle Labeling Program (PBEV), managed by Inmetro, measures the energy efficiency of vehicles sold in Brazil. It considers consumption in MJ/km (megajoules per kilometer) and km/l (kilometers per liter), providing a detailed analysis of the energy expenditure of cars in different situations.
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The 2026 electric Vitara arrives in Brazil and proves that Suzuki is not leaving: 4×4 traction, 184 hp, 61 kWh LFP battery, 293 km range, R$ 259,000, and a trunk capacity of 224 L.
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Hyundai has unveiled the Boulder, a square SUV with a body-on-frame design, 37-inch mud tires, and carriage-style doors that seems to be made to take on the Ford Bronco and the Scout Traveller in the United States.
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The Toyota Hilux is R$ 75.5 thousand cheaper and bets on the 2.8 turbodiesel engine with up to 204 hp and 50.9 kgfm to catch up with the VW Saveiro, which leads with 4,472 sales.
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The new Renault Koleos has a screen exclusively for the passenger that is invisible to the driver, heated rear seats, and 29 assistance systems, but its Chinese competitors cost R$ 40,000 less and deliver more power.
Tests are conducted under controlled conditions to ensure data accuracy, and results are classified on a scale from A to E, where “A” represents the most efficient vehicles and “E” the least economical. Based on this information, consumers can make more informed decisions when choosing a new car.
The Most Fuel-Efficient Flex Cars of 2024
Below, we highlight the flex cars with the best fuel consumption performance, according to Inmetro’s ranking. These vehicles have been tested for efficiency both on highways and in urban areas, showing great consumption results.
1. Toyota Corolla
The Toyota Corolla remains an excellent choice for those seeking economy and hybrid technology, combining efficient performance on both ethanol and gasoline.

2. Toyota Corolla Cross
The Toyota Corolla Cross, the SUV version of the Corolla, offers space and comfort without compromising energy efficiency, making it a good choice for families looking to save.

3. Renault Kwid
The Renault Kwid is one of the most fuel-efficient compact cars on the market, ideal for those looking for an efficient vehicle for daily city use.

4. Chevrolet Onix Plus
The Chevrolet Onix Plus is known for its excellent cost-benefit ratio, offering good performance and efficiency, especially on highways.

Tips For Choosing The Most Economical Car
When choosing a vehicle, it’s important to consider not only fuel consumption but also other factors such as maintenance cost, safety, and performance. Models like the Toyota Corolla and Chevrolet Onix Plus demonstrate that it is possible to balance energy efficiency and robustness.
Additionally, always consult reliable sources, such as Inmetro’s ranking, to compare fuel consumption data of different vehicles. This research can help identify the car that best meets your needs and expectations.

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