10 American Cars With the Worst MPG of All Time

Check Out The 10 Worst MPG Cars From America!

Updated October 1, 2018

Back in the 1960s a gallon of gas was as low as 35 cents. No wonder that was the decade of the muscle cars like the Mustang, Camaro, the Challenger, and Charger, all listed below as one of the 10 worst American gas-guzzlers of all time. Scroll down to view the entire list:


64 MUSTANG - Worst MPG Cars


10) Chevrolet Corvette

Introduced in 1953, the Chevrolet Corvette became the legend it continues to be in the 1960s. Production rose from 1,000 each year to about 27,000 a year. During that era the car was offered with a variety of engine options and several special performance editions were available as well. The car is in its seventh generation of production. The 1960 model was equipped with a 283, 230 hp or 245-hp V8 and has an MPG rating of around 13 to 14.

Worst MPG Cars - Chevrolet Corvette


9) Pontiac Grand Prix

Introduced in 1962, Pontiac produced the car through the 2008model year. A 303 hp 389 cubic inch V8 engine with four-barrel carburetor and dual exhausts powered the 60s models. It has been estimated that it had a 10 to 14 MPG rating.

Worst MPG Cars - Pontiac Grand Prix


8) Pontiac Bonneville

Introduced in 1957, the car was named after the Bonneville Salt Flats in Utah where land speed records are made. It was considered a luxury and performance vehicle because it was fitted with muscle-car-era V8 engines. Due to the gas embargo of the 1970s, Pontiac downsized the engine and made it more fuel efficient in 1977. The 1988 model had a rating of 11.5 MPG.

Worst MPG Cars - Pontiac Bonneville


7) Dodge Viper

The Dodge Viper was introduced in 1992. Priced at $50,000, only 155 of them were sold from 1992 through 1993. The car rated 11 MPG in the city and 20 on the highway with a combined MPG rating of 14.

Worst MPG Cars - Dodge Viper


6) Pontiac GTO

The GTO was unveiled in 1963 and helped to introduce the era of the muscle car. It featured a 389 V8 engine and was named after a European racing series. FIA racing fans were upset, but U.S. muscle car enthusiasts loved it. Its average MPG rating was 10.3.

Worst MPG Cars - Pontiac GTO


5) Ford Mustang

First introduced by Ford Motor Company in 1964, the Mustang evolved from the intermediate sized muscle cars of the 1950s that featured big block engines. 22,000 Mustangs were sold on the first day and one million were sold in the first two years. It rated 10 MPG.

Worst MPG Cars - Ford Mustang


4) Hummer

Originally made by AM General for the United States Army, the Hummer was introduced to the civilian market in 1992. In 1999 the company sold the Hummer name and rights to market and distribute it to General Motors. GM introduced three Hummer models – the H1, H2 and H3. The 2002 model was rated 9.6 MPG.

Worst MPG Cars - Hummer


3) Dodge Challenger

Dodge introduced the Challenger in 1970 as its answer to the Ford Mustang and Chevrolet Camaro. The basic Challenger used an I6 or V8 engine and the Challenger R/T featured a 383 cubic inch V8. People who owned one say that it had about 8 to 10 MPG rating.

Worst MPG Cars - Dodge Challenger


2) Dodge Charger

The 1969 Dodge Charger featured a V8 engine and clocked in at 8.7 MPG.

Worst MPG Cars - Dodge Charger


1) Chevrolet Camaro

Introduced as General Motors answer to the Ford Mustang, the Camaro came out in 1966. It was powered by a 140 hp, 3.8 liter I6 engine mated to a Saginaw three-speed manual transmission. It achieved a 5.4 MPG rating.

Worst MPG Cars - Chevrolet Camaro



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Chris Riley
About Chris Riley

I have been wrecking cars for as long as I've been driving them but I keep coming back for more. Two wheels or four, I'm all in. gives me a chance to give something back to the automobile community.

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