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5 Worst Cars for MPG

Car Reviews

It’s no secret that gas prices are on the rise, and with the cost of fuel constantly increasing, it’s more important than ever to find a car that gets good gas mileage. Not all cars are created equal when it comes to fuel efficiency, however, and some models definitely perform better than others. Here are five of the worst cars for MPG, and why they made the list.

Porsche Cayenne

The first car on our list is the Porsche Cayenne. Even though it’s a luxury SUV, the Cayenne gets terrible gas mileage, averaging just 15 MPG in the city and 21 MPG on the highway. Not only is that really bad for an SUV, but it’s also actually one of the worst MPG ratings for any car on the market.

Part of the reason for the Cayenne’s poor fuel efficiency is its large size and heavy weight, but it also has a powerful engine that sucks down gas quickly. If you’re looking for a luxury SUV that’s more fuel-efficient, try the BMW X5 xDrive40e, which gets 25 MPG in the city and 31 MPG on the highway.

Audi Q7

Next up we have the Audi Q7. Like the Porsche Cayenne, the Q7 is a large SUV with poor fuel economy, averaging just 16 MPG in the city and 22 MPG on the highway.

One of the reasons for its low gas mileage is its 7-speed automatic transmission, which is less fuel-efficient than other types of transmissions. The Q7 also has a V6 engine that guzzles gas, so it’s not exactly the most economical choice if you’re looking for an SUV. A better option might be the Audi Q5, which gets 20 MPG in the city and 27 MPG on the highway.4

BMW 740i

The BMW 740i is a large luxury sedan with a V8 engine, and it gets just 16 MPG in the city and 25 MPG on the highway. That makes it one of the least fuel-efficient cars in its class.

The 740i’s poor fuel economy is due in part to its big engine, but it also has a heavy body that doesn’t help matters. If you’re looking for a more fuel-efficient BMW sedan, try the BMW 530i, which gets 24 MPG in the city and 34 MPG on the highway.

Mercedes-Benz S550e

The Mercedes-Benz S550e is a plug-in hybrid luxury sedan that’s actually pretty fuel-efficient… when it’s running on electric power. When the battery runs out, however, the S550e’s gas mileage drops to a measly 21 MPG in the city and 29 MPG on the highway.

That makes it one of the least fuel-efficient cars on the market, and not a great choice if you’re looking for a hybrid. A better option might be the Toyota Camry Hybrid, which gets 51 MPG in the city and 53 MPG on the highway.

Chevrolet Suburban

Last but not least, we have the Chevrolet Suburban. This large SUV gets just 15 MPG in the city and 21 MPG on the highway, making it one of the least fuel-efficient vehicles on the road.

The Suburban’s poor fuel economy is due to its big size and V8 engine. If you’re looking for a more fuel-efficient SUV, try the Chevrolet Equinox, which gets 28 MPG in the city and 39 MPG on the highway.

With gas prices consistently on the rise, it’s important to choose a car that will save you money at the pump. Unfortunately, not all cars are created equal when it comes to fuel efficiency. These five cars have some of the worst MPG ratings on the market, so if you’re looking to save money on gas, you might want to avoid them. Instead, choose one from our list of efficient and affordable vehicles.

Terry Wade

Terry Wade is a traveling Car Mechanic in Southfield Michigan. He's been repairing cars for nearly 20 years.
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TerrysArticles is brought to you by ME!, traveling Mechanic Terry Wade, I’m do my darndest to update the site with the best quality articles and news available on the internet and elsewhere to help you diagnose and fix your vehicle yourself.

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