Worst Gas Mileage Vehicles of 2026: SUVs, Trucks, and More! (2026)

When it comes to gas mileage, some vehicles just can't seem to keep up with the times. In an era where fuel efficiency is a top priority for many car buyers, certain models stand out for all the wrong reasons. Let's dive into the world of gas-guzzlers and explore why these vehicles are the worst offenders when it comes to mileage in 2026.

The Mileage Offenders

The list of vehicles with the poorest gas mileage for the 2026 model year is a who's who of luxury SUVs, high-performance trucks, and exotic supercars. From the BMW X5 M Competition to the Ferrari Purosangue, these rides are known for their speed, power, and comfort, but not so much for their fuel efficiency.

One thing that immediately stands out is the dominance of SUVs and trucks on this list. It seems that the larger the vehicle, the more it struggles with mileage. Take, for example, the BMW X5 M Competition and X6 M Competition. These SUVs are not only some of the fastest in their class but also some of the least fuel-efficient. With a combined mileage of just 15 mpg, they're a far cry from the eco-friendly vehicles we often hear about.

Luxury and Performance, Not Efficiency

What many people don't realize is that when it comes to luxury vehicles, fuel efficiency often takes a backseat. Take the Mercedes-Maybach GLS600, for instance. With its reclining rear seats, headrest cushions, and plush interiors, this SUV is designed for ultimate comfort and luxury. But with a combined mileage of 15 mpg, it's clear that fuel economy wasn't a top priority during its design.

The same can be said for the Cadillac Escalade V, another popular luxury SUV. With a supercharged 6.2-liter engine and countless customization options, good gas mileage simply isn't on the menu. And let's not forget the Dodge Durango Hellcat, a 7-seater powerhouse with a mileage that's more suited for a race car than a family vehicle.

A Step Towards Improvement

However, it's not all doom and gloom. Some manufacturers are making efforts to improve fuel efficiency, even in their high-end models. The Mercedes G-Wagon, once the king of gas guzzling, has seen its fuel economy rise from a combined 14 mpg to 15 mpg thanks to a new mild hybrid system. This small improvement might not seem like much, but it's a step in the right direction.

The Supercar Exception

Now, when it comes to supercars, it's a different story altogether. These vehicles are designed for speed, handling, and an unparalleled driving experience. Fuel efficiency is often an afterthought, if it's considered at all. Take the Ferrari Purosangue, Ferrari's first-ever SUV. With a V12 engine and a mileage of 11 city/15 highway/12 combined, it's clear that this vehicle is not meant for long-distance, fuel-efficient travel.

A Deeper Look

What this list of gas-guzzlers really suggests is a deeper question about our relationship with cars and fuel efficiency. While many shoppers prioritize fuel economy, there's still a significant market for high-performance, luxury vehicles that prioritize speed, comfort, and an exclusive driving experience over mileage. It's a reminder that, despite our best efforts, we still have a long way to go when it comes to making fuel-efficient vehicles the norm.

In conclusion, while these vehicles might be the worst offenders when it comes to gas mileage, they also represent a unique segment of the automotive industry. They showcase the balance between performance, luxury, and fuel efficiency that manufacturers are constantly striving for. As we move towards a more sustainable future, it will be interesting to see how these vehicles evolve and whether they can strike a better balance between power and efficiency.

Worst Gas Mileage Vehicles of 2026: SUVs, Trucks, and More! (2026)

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