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What is the Cheapest Car with Best Gas Mileage in 2025?

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Published on: July 17, 2025

Cheapest car with best gas mileage is a desirable type of automobile for anyone who wants to make an environmentally friendly and budget-friendly decision. In the modern era, when things change faster than ever, the gasoline price is no exception. In the global context, prices always fluctuate, decreasing and increasing interchangeably due to geopolitical factors, wars, and the laws of supply and demand. Hence, it is obvious why consumers are seeking automobiles that require less fuel, are reliable, and suit their budget and needs.

In today’s world, economics is not the only problem for consumers. Environmental pollution is a more severe and global issue that affects every living being. Hence, reducing one’s ecological footprint is crucial. It is only possible by owning an environmentally friendly vehicle.
If you are interested in cheap cars with good gas mileage and want to pick one of them, it is really a smart decision. However, how much do you know about the benefits of having such an automobile? Do you know how automakers develop such cars? In the blog below, we can discuss all those topics in detail.

How do automakers develop affordable cars with maximum fuel efficiency?

Automakers compromised vehicle weight and used materials for fuel economy. They had to focus on lighter/smaller cars and start using plastic and aluminum in components. The reason that pushes automakers to develop those types of cars goes far beyond consumers’ demand or saving fuel. The process started in the USA after the 1970s oil crisis when the government passed a law named Corporate Average Fuel Economy (CAFE) standards that require automakers to meet minimum average fuel efficiency levels or face penalties. Many authoritative automakers such as General Motors, Ford, and Chrysler adapt to new standards sooner and start producing smaller, fuel-efficient automobiles.

At the beginning of the 21st century, striving for efficiency was the result of rising gasoline prices after 2007, inflation, and serious environmental concerns. According to Statista, gasoline prices constantly fluctuate, reaching a record of 3.95 U.S. dollars per gallon in 2022; however, in 2024, the average price is 3.3 U.S. dollars. Still, the U.S maintains a lower fuel price compared to other high-income countries. As statistics show, fuel prices are unstable and constantly changing, which is why it is not smart to rely on them, especially in the century we live in. This will push consumers to search for cheapest car with best gas mileage.

affordable cars with maximum fuel efficiency

What automakers are doing today to reach advanced efficiency?

Nowadays, car manufacturers use a combination of modern engineering and smart technology. Here is a breakdown of aspects:

  • Electrification of automobiles: Hybrid technology is one of the first contributors for improving efficiency. There are 4 main types of hybrid cars: Mild Hybrids, Full Hybrids, Plug-in Hybrids (PHEVs), Battery Electric Vehicles (BEVs). From those types, only BEVs eliminate fuel usage completely.
  • Optimizing engine: direct fuel injection (DFI) improves fuel economy and combustion in modern engines. It means that fuel is injected into the main combustion chamber of each cylinder. Cylinder deactivation is also a beneficial technology as it switches off some cylinders when full power isn’t necessary.
  • Materials: Reducing the weight of the automobile is an important aspect of producing cheap cars with good gas mileage. Lightweight materials such as steel and magnesium help reduce the weight without sacrificing reliability and safety.
  • Smart fuel management: A fuel management system (FMS) is built to track, regulate, and control fuel usage and inventory. The system delivers data about fuel consumption, supporting improved efficiency and strategies.
  • Design: Compact design and smoother shape of the vehicle are the key to improving fuel efficiency.

In the following paragraph, we will see how much annual fuel savings are possible when one owns the cheapest car with the best gas mileage.
How much do fuel-efficient cars help with cost-effectiveness and annual fuel savings?
Let’s illustrate the effect of fuel-efficient cars on the owner’s budget based on real examples:

Example 1

In the first example, let’s take two different vehicles from the same maker. Their combined MPG is significantly different. let’s make a calculation based on the following data: fuel price- $3, annual mileage – 10,000 miles.

Toyota GR Corolla

  • Year: 2025
  • Size : Subcompact Cars
  • Drive: All-Wheel Drive
  • Combined MPG: 24

Annual fuel cost will be $1,250 for this car.

Toyota Corolla

  • Size: Compact Cars
  • Drive: Front-Wheel Drive
  • Combined MPG: 34

In this case, the annual fuel cost is $882.35.

Consider that we make calculation based on particular data. Fuel cost and annual mileage are variables. In this particular example we can say that $368 is saved.

Example 2

In this example, let’s see how driving patterns affect fuel savings. Even cheap cars with good gas mileage do not have the same mpg in City and highway traffic. Let’s pick one of the above-mentioned vehicles and check what the savings will be in different driving patterns.

Toyota GR Corolla
City MPG: 21
Highway MPG: 28
If an individual accumulates mileage in city traffic (21 mpg), the fuel cost will be approximately $1,428.57.
If an individual drives mostly on Highway (28 mpg), the cost will be approximately $1,071.43.
Those estimates are based on EPA data and may change depending on driving conditions. Fuel economy. Gov provides estimates, energy and environmental impact data, and useful information regarding vehicles. You can make research and compare various cars of your choice.
Those examples illustrate that a fuel-efficient car is a really smart investment. Even when you don’t pick cheapest car with best gas mileage and buy more expensive automobile with good mpg, you should know that in the long term fuel savings will outweigh initial expenses.

Top 5 cheapest car with best mileage in 2025

Below, we have the best picks of brand-new cars that combine affordability and fuel economy. Affordability and “cheapness “have different meanings for different individuals. So, we will list 2025 cheap cars with good gas mileage under $ 30,000. Here they are:

Toyota Corolla

  • MSRP: $22,175 – $27,890
  • MPG: Combined 35/ City: 32/ Highway: 41
  • Size class: Compact Cars
  • Drive: Front-Wheel Drive
    Why it is a good pick: It has excellent safety features, an 8-inch touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, and is available as a hatchback or sedan. It is also equipped with driver assistant features such as adaptive cruise control and traffic sign recognition.

Toyota Prius

  • MSRP: $29,485–$37,900
  • MPG: Combined 57/ City:57 / Highway: 56
  • Size class: Midsize Cars
  • Drive: Front-Wheel Drive
    Why it is a good pick: Further clarification is unnecessary when addressing the Toyota Prius, no matter the year of production. Fascinating fuel efficiency, satisfying acceleration and handling, enjoyable driving, blind-spot monitoring, and rear cross–traffic alert are just some of the benefits of choosing this vehicle and enjoying it.

Nissan Sentra

  • MSRP: $21,590 – $22,290
  • MPG: Combined 34/ City:30/ Highway:40
  • Size Class: Midsize Cars
  • Drive: Front-Wheel Drive
    Why it is a good pick: It is an affordable car with a classy interior and exterior. The model has comfortable seats, a cargo capacity of 14 Cubic Feet, and beneficial driver assistance features. So, if budget is your main concern, it is a cheapest car with best gas mileage.

Honda Accord Hybrid

  • MSRP: $29,445–$40,450
  • MPG: Combined 48 / City 51/ Highway: 44
  • Size class: Large Cars
  • Drive: Front-Wheel Drive
    Why it is a good pick: Let’s start by stating that the carmaker won the 2025 “Best Car Brand” award for the fourth year in a row, earning top marks for performance, interior quality, safety, and reliability. Hybrid offers advanced technology along with impressive fuel efficiency; 204 horsepower, a spacious 12.3-inch touchscreen, and wireless Apple CarPlay – all of those specs make it a desirable automobile for consumers.

Kia Niro FE

  • MSRP: $28,385–$42,185
  • MPG: Combined 53 / City 53 / Highway: 54
  • Size class: Small Sport Utility Vehicle 2WD
  • Drive: Front-Wheel Drive
    Why it is a good pick: equiped with hybrid powertrain and modern safety features, the car is ideal choice for eco-conscious drivers who want to lower fuel costs and reduced emissions without sacrificing comfort or practicality.

If you are searching for a 2025 automobile, consider those recommended models or do further research yourself online and offline.
Most models produced nowadays promise fuel efficiency. However, some factors may eventually affect it negatively. In the paragraph below, we will discuss particular factors that influence the efficiency.

What factors affect fuel economy?

The widespread causes of lowered fuel efficiency can be driving habits, heavy load, or skipped routine maintenance. Let’s define each of them below thoroughly:

Driving Habits

Driving habits play a crucial role in every aspect of the automobile, and fuel efficiency is no exception. Aggressive acceleration, unsteady speed, excessive idling, and excessive use of the air conditioner all negatively affect fuel economy. Surely, it is not always easy to be mindful of your driving habits. For example, it would be better to smoothly accelerate and decelerate, keep a steady speed, and use the air conditioner when you really need it. Adopt fuel-efficient driving habits to maximize fuel economy.

Excessive weight

Adding heavy items means a heavier vehicle. Hence, the engine needs to work harder and consume more fuel than usual. Avoiding adding heavy items to the automobile helps achieve maximum fuel efficiency. Keep in mind that the smaller the vehicle, the more it is affected by heavy loads.

Skipped Routine maintenance

Ignoring routine maintenance may result in dirty air filters and oil, clogged fuel filters, and clogged fuel injectors, which can cause worse gas mileage. If you take care of your car routinely, you likely avoid those problems before they become severe.
As you can see, there are a wide variety of probable issues that may cause a decrease in fuel efficiency even for cheap cars with good gas mileage. In this case, you will need an advanced tool that helps you do the car testing without worrying about unnecessary mileage. Let’s familiarize ourselves with a great testing tool named Mileage Blocker.

Routine maintenance

Mileage blocker Speed filter

Mileage blocker is an excellent tool that can halt the mileage recording process in all control units when testing your automobile in a controlled environment. It’s a totally must-have tool for those who take care of owned automobiles and want to test them to reveal potential issues they might have. The special thing about the Mileage blocker is that it is a reliable device that doesn’t cause flaws in a Can bus system. The device is available in a bunch of makers and models, and you can purchase the device directly from the online shop. After purchasing the tool, you can instantly enjoy the benefits:

For additional inquiries, the customer center and support team are always available.
Disclaimer: The mileage blocker was exclusively created for ethical purposes: testing and tuning. It is not allowed to be utilized on public roads.

Takeaway

The cheapest car with the best gas mileage is a great choice for anyone who prioritizes cost-saving and ecology at the same time. Finding the perfect car takes energy and effort. However, thanks to technology, anyone can do comprehensive research, compare variants, and discover the one that suits their lifestyle and budget. Making the mindful decision regarding the automobile purchase will bring financial stability and peace of mind for a longer period.

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