12 Cars and Trucks Rated Worst for the Environment

The most fuel-efficient vehicles are generally magnets for press and media attention due to the high level of engineering required to achieve such high scores. However, on the other end of the spectrum, there’s the vehicles with some of the worst mileage, which is not surprisingly made up of SUVs, trucks, and really high performance cars. GreenerCars.org, a website published through the American Council for an Energy Efficient Economy, recently published a list of the 12 cars rated to be the worst — environmentally speaking. By assigning a “green score” to each vehicle, GreenerCars.org was able to rank them, also.

In order to assign the ratings, the AEEE uses an assortment of factors to calculate the impact that a vehicle has on the environment. From the fuel consumption up front to the emissions coming out of the rear, the amount of fuel and levels of toxicity expelled were taken into consideration when calculating the vehicle’s Green Score. “The Green Scores also consider such factors as emissions estimates for a vehicle’s manufacturing process, disposal impact, and (where applicable) natural gas extraction practices and the sources of energy used to generate power for electric cars,” Forbes reported. The most efficient car ranked this year scored a 59; the lowest, as you’ll see, scored 18.

Notably, a big factor wasn’t discussed in terms of how it would affect the results: regular use of the vehicle, number of miles driven on average, and number of the respective vehicles on the road. We don’t have those answers for you, but keep it in mind when reading through the rankings.

Here are the twelve cars that rank at the bottom from an environmental standpoint, you can check out the list and more at GreenerCars.org website here. Did anything surprise you?


12. Cadillac Escalade ESV

It’s Cadillac’s biggest SUV, but made just a bit bigger. The the 6.2 liter V8 in the heart of this beast powered the Escalade ESV to a Green Score score of 23; it offers 13 miles per gallon in the city, and a not much improved 18 miles per gallon on the highway, and carries a Bin 5 emissions rating.

Lamborghini Aventador Roadster

11. Lamborghini Aventador Roadster

It’s got 12 cylinders that displace 6.5 liters, so its not a big surprise that Lamborghini’s flagship sports car was slapped with a Green Score of 23, on par with the Cadillac. However, the Aventador manages just 10 miles per gallon in the city, and 16 on the highway, which is paired with the Bin 5 and LEV II emissions ratings. Chances are, though, you’re not buying a Lamborghini because it’s fuel-savvy.


10. Rolls-Royce Phantom EWB

The Extended Wheelbase Rolls-Royce Phantom is so long it looks like it could snap in the middle. It’s certainly not a lightweight car either; to get it around, it uses a 6.7 liter V12, which is Bin 5 LEV II-certified, and manages 11 miles per gallon in the city (take that, Lamborghini) and 19 on the highway. It too has a Green Score of 23.


9. Rolls-Royce Phantom Drophead Coupe

The Rolls-Royce Phantom Drophead Coupe shares the statistics as the Phantom EWB, and therefore the same score of 23. Despite the smaller size (smaller, in this case, is completely relative), the coupe also gets 11 miles per gallon in the city and 19 on the highway. It also shares the Bin 5 and LEV II ratings.


8. Ford Expedition/Lincoln Navigator

Like the Escalade, Ford’s Expedition (and its corporate twin, the Navigator) is exactly the kind of car one would expect on this list; it’s among the largest mass-market road-legal vehicles around, though with its 5.4 liter V8, it ‘bests’ the Cadillac’s Green Score of 23 with a score of 22 despite the smaller engine displacement. It too offers 13 miles per gallon in the city and 18 miles per gallon on the highway. It falls at a Bin 8 emissions rating.

Ford SVT Raptor F-150

7. Ford F-150 Raptor

Ford’s Raptor was built for more or less one purpose, which is effectively illustrated in the picture above. It uses a 6.2 liter V8 that, although powerful, returns 11 miles per gallon in the city and 16 miles per gallon on the highway for a score of 22. The Raptor is is tagged with an emissions rating of Bin 4.


6. Mercedes-Benz G550

The Mercedes-Benz G-Class is a formidable off-roading monster swathed in the finest that Mercedes’ has to offer, with all the amenities you’d expect from its luxury sedan sitting on a frame made for trails and suspension built for abuse. It also has a 5.5 liter V8 at its heart, which is why its here — that, and 12 mile per gallon city rating and the 15 mile per gallon highway rating, all of which gives it a score of 22. However, its emissions are rating at ULEV II/Bin 5.


5. Mercedes-Benz G63 AMG

Put two turbos on the G-Class’ V8 and some more accoutrements and you have the G63 AMG, a hotter and more powerful version of the luxury off-roader. This also means it’s even less efficient when consuming fuel, as it still gets 12 miles per gallon in urban driving, but just 14 on the highway — enough to lower its Green Score to 21.


4. Bentley Mulsanne

Beating out the Rolls’ V12 is the 6.8 liter behemoth sitting under the Bentley Mulsanne’s hood, which although capable of delivering over 500 velvety horsepowers, isn’t so refined when it comes to fuel: the Mulsanne gets a not-very-unexpected rating of 11 miles per gallon in the city, and 18 on the highway to pair with its Bin 5 and LEV II emissions ratings. It has an overall Green Score of 21.


3. Ford E-150

Ford’s popular cargo van, the E-Series, rounds out the top three. While undeniably useful and the beating heart for many construction crews, utilities workers, and numerous other services, the E-Series and its 5.4 liter V8 landed a rating of 21, with mileage ratings weighing in at 12 miles per gallon in the city, and 16 on the highway. It’s rated at Bin 8 for emissions.

Bugatti_Veyronin Gerlach_Nevada

2. Bugatti Veyron 16.4

It has 16 cylinders, 8 liters, and four turbos, all of which combine to push out in excess of 1,000 horsepower, so it’s no surprise that it would yield a Green Score of 19, though its likely that if you’re buying a Veyron, saving at the pump isn’t among your top priorities. It gets a hearty 8 miles per gallon in the city, and 14 on the highway, and is endowed with the Bin 5 and LEV II emissions ratings.


1. Ram 2500

A Green Score of 18 ranks the Ram (FIATY.PK) as the least environmentally friendly vehicle on the market currently, according to GreenerCar. It’s mileage is rated at 13 miles per gallon in the city, and 18 on the highway, and its emissions ratings is LEV II. Why isn’t the Veyron in its place, you ask? We would assert its due the low-volume and low average miles driven-nature of the Bugatti, whereas the Ram 2500 is far more mass-market and often used as a daily driver.