In today’s world, where fuel costs are a significant concern for drivers, understanding and maximizing miles per gallon (MPG) is more important than ever. MPG is the standard measurement of fuel efficiency, telling you how far your car can travel on a single gallon of fuel. Whether you’re commuting to work, taking a road trip, or simply running errands, choosing a car with the best MPG can lead to substantial savings and a reduced environmental footprint.
While diesel engines have historically been known for their fuel efficiency, modern petrol and hybrid cars are rapidly closing the gap, offering impressive MPG figures. This guide will explore some of the top cars on the market that excel in fuel economy, covering both petrol, hybrid and diesel options to help you make an informed decision.
It’s crucial to remember that a car’s MPG can fluctuate based on driving habits. A more aggressive driving style will typically result in lower fuel economy compared to smooth, consistent driving. However, to provide a fair comparison, the MPG figures mentioned below are based on official average fuel economy ratings determined by the Worldwide Harmonised Light-duty Vehicles Test Procedure (WLTP).
Here are some of the leading cars renowned for their exceptional fuel efficiency:
- BMW 330e
- Toyota Prius
- Suzuki Swift
- Toyota Corolla Touring Sports
- Hyundai IONIQ
- Mercedes-Benz E300 de
- Peugeot 208
- Vauxhall Corsa
- Skoda Octavia
- Volkswagen Golf
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1. BMW 330e – Up to 217.3 MPG
The BMW 330e stands out as a prime example that fuel-efficient cars can also deliver exhilarating performance. This plug-in hybrid combines a potent 2.0-litre petrol engine with an electric motor, resulting in both strong acceleration and remarkable fuel economy.
Motoring experts highlight the 330e plug-in hybrid as a standout in the BMW 3 Series lineup. Its ability to travel on electric power alone for approximately 30 miles and achieve over 100 MPG on paper makes it an attractive option for drivers looking for efficiency without compromising on driving pleasure.
Furthermore, the BMW 330e maintains the high-quality interior and advanced technology that the 3 Series range is known for. Exploring the used car market can also reveal attractive deals on pre-owned BMW models, making the 330e a potentially accessible entry into fuel-efficient luxury.
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2. Toyota Prius – Up to 67.0 MPG (Self-Charging Hybrid) and 235.4 MPG (Plug-in Hybrid)
Toyota’s Prius is synonymous with hybrid technology and fuel efficiency. Available in both self-charging and plug-in hybrid versions, the Prius caters to different driving needs and preferences. The plug-in hybrid variant boasts an exceptional official MPG of 235.4, provided the battery is regularly charged.
The self-charging Toyota Prius, while offering a slightly lower MPG of around 67, remains a highly economical choice, particularly in the used car market. Its affordability and impressive fuel economy make it a popular option for budget-conscious buyers. Plug-in hybrid Prius models further enhance fuel savings by offering electric-only driving for shorter distances.
Inside, the Prius is well-equipped and built to Toyota’s renowned high standards of quality and reliability. Its reputation for dependability and low running costs has made it a favorite among taxi services and individual drivers alike.
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3. Suzuki Swift – Up to 64.0 MPG
The Suzuki Swift supermini is a compelling option for drivers seeking a compact and fuel-efficient car. Every current Swift model incorporates Suzuki’s ‘Boosterjet’ hybrid engine, a mild hybrid system that uses an electric motor to support the petrol engine, reducing strain and improving fuel economy.
While the mild hybrid system in the Suzuki Swift doesn’t allow for pure electric driving, it still delivers superior fuel efficiency compared to traditional petrol engines. The electric motor provides an extra boost during acceleration, enhancing both responsiveness and economy. This makes the Swift a fun-to-drive and frugal choice in the supermini segment.
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4. Toyota Corolla Touring Sports – Up to 63.8 MPG
The Toyota Corolla Touring Sports estate marks the return of the Corolla nameplate to the UK market, bringing with it enhanced hybrid technology and impressive fuel efficiency. Both the estate and hatchback versions of the Corolla offer a refined driving experience, characterized by well-tuned suspension and agile handling.
All Toyota Corolla models come generously equipped and offer a choice of two petrol-hybrid engines: a 1.8-litre and a 2.0-litre. These engines deliver up to 63.8 MPG, making the Corolla Touring Sports a practical and economical choice for families and individuals needing extra space without sacrificing fuel efficiency.
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5. Hyundai IONIQ – Up to 60.0 MPG (Self-Charging Hybrid) and Higher for Plug-in Hybrid
The Hyundai IONIQ, similar to the Toyota Prius, is available as both a self-charging hybrid and a plug-in hybrid. While the self-charging hybrid offers a solid MPG of around 60, the plug-in hybrid IONIQ presents even greater value in the used car market, often offering a compelling blend of price and fuel economy.
This Hyundai IONIQ utilizes a 1.6-litre petrol engine paired with an electric motor, providing an electric-only range of up to 39 miles on a full charge. Experts commend the IONIQ for its overall cost-effectiveness, extending beyond fuel savings to include potentially lower insurance and maintenance expenses.
The IONIQ boasts a generous level of standard equipment and a larger boot capacity than the Prius. Its official MPG figures remain impressive, solidifying its position as a strong contender in the fuel-efficient car category.
The Most Fuel-Efficient Diesel Cars Available
While petrol and hybrid cars have made significant strides in fuel efficiency, diesel engines still hold a place for drivers who prioritize long-distance economy. Modern diesel technology, particularly in hybrid configurations, can deliver exceptional MPG figures.
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1. Mercedes-Benz E300 de – Up to 217.3 MPG
The Mercedes-Benz E300 de is a remarkable example of a plug-in hybrid diesel, achieving an astonishing official MPG figure. This model demonstrates that diesel technology, when combined with electric power, can reach levels of fuel efficiency comparable to the best petrol hybrids.
To achieve the maximum MPG from the E300 de, regular battery charging is essential. Mercedes-Benz claims an electric-only range of up to 33 miles on a full charge, suitable for urban driving and minimizing fuel consumption in city environments.
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2. Peugeot 208 1.5 Blue HDi – Up to 71.4 MPG
Launched in 2019, the Peugeot 208 diesel is a stylish and fuel-efficient supermini. This five-door hatchback features distinctive LED lighting and a 1.5-litre diesel engine capable of exceeding 70 MPG in official testing.
The Peugeot 208’s interior is equally appealing, with a modern dashboard design that incorporates instruments viewed over the steering wheel, adding to its unique and contemporary feel. The combination of style and fuel economy makes the Peugeot 208 diesel a compelling choice in the supermini segment.
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3. Vauxhall Corsa 1.5 Turbo D – Up to 70.6 MPG
The Vauxhall Corsa shares its platform and many components with the Peugeot 208, a result of both brands being part of the Stellantis group. This shared engineering explains the Corsa’s similar styling and comparable fuel efficiency figures.
Underneath the skin, the Vauxhall Corsa diesel utilizes the same engine and mechanical elements as the Peugeot 208 diesel, resulting in nearly identical MPG performance. The Corsa offers a blend of style, practicality, and impressive fuel economy in a popular supermini package.
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4. Skoda Octavia 2.0 TDI SE – Up to 68.9 MPG
The Skoda Octavia is renowned as a practical and spacious family car, offering exceptional interior room and a particularly large boot, especially in the estate version. The 2.0 TDI SE diesel model further enhances the Octavia’s appeal by adding outstanding fuel economy to its list of strengths.
Equipped with a 150hp 2.0-litre TDI engine, the Skoda Octavia diesel prioritizes torque over outright power. This engine characteristic allows for relaxed motorway cruising in higher gears, minimizing the need for frequent gear changes and contributing to fuel savings. Experts highlight the Octavia’s exceptional value, combining excellent fuel economy and reliability at an accessible price point.
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5. Volkswagen Golf 2.0 TDI – Up to 68.9 MPG
The Volkswagen Golf, sharing engineering with the Skoda Octavia within the Volkswagen Group, also offers a highly fuel-efficient 2.0 TDI diesel variant. This version of the Mk8 Golf uses the same 150hp diesel engine and six-speed manual gearbox found in the Octavia.
While slightly less spacious than the Octavia, the Golf provides a more premium interior feel, with digital instruments and a large infotainment screen in many versions. The used car market offers attractive deals on Volkswagen Golf models, making it a potentially attainable option for drivers seeking a blend of fuel economy and refinement.
Maximizing Your Car’s MPG: Practical Tips
Choosing a fuel-efficient car is the first step, but adopting fuel-conscious driving habits can further enhance your MPG and savings.
1) Reduce Air Conditioning Usage
Minimizing air conditioning use can significantly improve fuel economy. The engine expends considerable energy powering the A/C system, so using it judiciously, especially at lower speeds or when the outside temperature is mild, can save fuel.
2) Drive Smoothly and Steadily
Smooth driving techniques are crucial for fuel efficiency. Maintaining a steady speed, especially on motorways, and avoiding harsh acceleration and braking minimizes fuel consumption. Gentle acceleration from a standstill also reduces engine strain and improves MPG.
3) Combine Short Trips
Whenever possible, consolidate short trips into longer journeys. Engines operate most efficiently when warmed up. Frequent short trips prevent the engine from reaching its optimal operating temperature, leading to increased fuel consumption and potentially more wear and tear.
Conclusion: Fuel Efficiency for a Sustainable and Economical Drive
Selecting a car with the best MPG is a smart choice for both your wallet and the environment. Whether you opt for a petrol hybrid, plug-in hybrid, or a modern diesel, the models highlighted in this guide represent some of the most fuel-efficient options available. By combining a fuel-efficient vehicle with mindful driving habits, you can significantly reduce your fuel costs and contribute to a more sustainable driving future.
