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Inmetro Released the 2025 Ranking of the Most Fuel-Efficient Cars in Brazil. Check Out the 5 Models That Consume the Least Fuel and Find Out Which Offers the Best Value for Money.
The Inmetro released the latest ranking of the most fuel-efficient cars in Brazil, highlighting the flex combustion models with the lowest fuel consumption in the country.
The survey assessed the performance of the vehicles in urban and highway tests, measuring both fuel consumption in kilometers per liter (km/l) and energy efficiency (MJ/km).
In a scenario of rising fuel prices, the search for fuel-efficient cars has intensified, and the new study arrives as an essential tool for those looking to save and reduce maintenance costs.
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According to the ranking, the Chevrolet Onix occupies the first place among cars that consume the least fuel, followed by the Onix Plus, Renault Kwid, Fiat Mobi, and Fiat Cronos, which complete the top 5 of 2025.
See Which Are the Most Fuel-Efficient Cars in Brazil
Chevrolet Onix: Similar Performance with a Focus on Efficiency
The model recorded between 9.8 and 12.4 km/l with ethanol and from 13.7 to 17.7 km/l with gasoline, depending on the version and the type of route.
In addition to efficiency in consumption, the Onix stands out for its balanced performance and comfort, features that have kept it among the favorites of Brazilians for years.
According to the survey, the Onix combines good energy efficiency with modern technology and affordable maintenance — factors that explain its leadership among the most fuel-efficient cars of 2025.
Onix Plus
With averages of 9.8 to 12.1 km/l with ethanol and 13.9 to 17.1 km/l with gasoline, the sedan offers virtually the same level of efficiency as the Onix hatch, with the advantage of increased interior space.
The model is designed for those seeking economy without sacrificing comfort and connectivity, combining performance, low consumption, and good drivability on both highways and city roads.
Renault Kwid: The Compact That Is Still Synonymous with Economy
Even without occupying the top spot as in previous years, the Renault Kwid remains strong among the most fuel-efficient cars of 2025.
The French compact showed averages of 10.4 to 10.8 km/l with ethanol and 14.6 to 15.5 km/l with gasoline, numbers that keep it among the best cost-benefit options on the market.
The Kwid stands out for its lightweight design and small-displacement engine, prioritizing efficiency.
Its reduced consumption makes it especially advantageous for urban use, where traffic jams and constant stops tend to increase fuel expenses.
Fiat Mobi: Urban Compact with Excellent Performance
In fourth place, the Fiat Mobi reinforces the importance of compact models among the cars with the least fuel consumption.
According to the Inmetro, it achieves averages of 9.8 to 10.6 km/l with ethanol and 14.0 to 15.1 km/l with gasoline.
These results place it among the best options for those looking for an agile, practical, and economical car for everyday urban driving.
In addition to the economy, the Mobi is valued for its low maintenance costs and strong acceptance in the used car market, factors that enhance its cost-benefit ratio.
Fiat Cronos: The Accessible and Efficient Sedan
Closing the top 5 most fuel-efficient cars of 2025, the Fiat Cronos surprises with averages close to those of smaller models.
The sedan shows from 9.7 to 11.2 km/l with ethanol and between 13.4 and 15.9 km/l with gasoline, numbers that demonstrate its balance between performance and efficiency.
Despite being a more spacious vehicle, the Cronos remains competitive in consumption and ranks as one of the most complete options among compact sedans in its category.
What Explains the Highlight of These Models in the Inmetro 2025 Ranking?
The five cars that consume the least fuel in 2025 have in common the use of compact engines, efficient electronic calibration and low structural weight, improving the relationship between power and consumption.
In addition, all are flex vehicles, capable of running on gasoline and ethanol, and were evaluated in the most economical versions available on the market.
These factors, combined with the growing demand for energy efficiency, place Brazil in a scenario of automotive renewal, focusing on economy, technology, and sustainability.
The Inmetro 2025 ranking proves that it is possible to combine low fuel consumption with comfort and technology.
The five most fuel-efficient models — Onix, Onix Plus, Kwid, Mobi, and Cronos — represent what is most efficient among flex cars in Brazil.
Choosing one of these vehicles is an intelligent way to save on a daily basis and contribute to a more sustainable automotive future.
Source: Diário do Comércio
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