The 10 Worst Gas Guzzling Muscle Cars Ever

Muscle cars have always been about power first and everything else second, but some models took that philosophy to extremes. These machines delivered serious performance, yet their fuel economy was almost laughable. Owners loved the roar of the engine and the thrill of speed, but trips to the gas station became part of the routine. In an era when style and horsepower mattered more than efficiency, burning through gallons of fuel was simply part of the deal. Looking back, a few cars stand out for just how thirsty they really were. They remain memorable, not only for the muscle they packed, but for how much it cost to keep them running. These are the worst gas guzzling muscle cars ever.

1970 Chevrolet Chevelle SS 454

The 1970 Chevrolet Chevelle SS 454 was a true powerhouse, boasting a 7.4-liter V8 engine that generated 450 horsepower. This muscle car was designed for performance, offering a thrilling driving experience with remarkable acceleration and top speed. However, its fuel economy was far from impressive, with city mileage averaging just 10 MPG. Despite its lack of efficiency, the Chevelle SS 454 quickly became an iconic symbol of American muscle. The car’s aggressive styling, combined with its robust engine, made it a favorite among collectors. However, the trade-off between power and fuel efficiency was hard to ignore, especially in an era when fuel prices were rising. While its performance still makes it a coveted classic today, the Chevelle SS 454 remains one of the worst offenders in terms of fuel consumption.

1970 Plymouth Road Runner Superbird

The 1970 Plymouth Road Runner Superbird was designed for NASCAR but found its way into the streets with a 7.0-liter V8 engine under the hood. With its aerodynamic body and distinct rear wing, it was engineered to dominate the racetrack, but its fuel consumption left much to be desired. On the road, the Superbird averaged about 10 MPG in the city, making it a fuel-guzzling machine. Despite its low efficiency, the car’s performance capabilities and striking design made it an instant classic. The Superbird’s high horsepower and distinctive styling made it a collector’s dream, even though its gas mileage was less than stellar. The car’s fuel inefficiency was a direct result of its powerful engine, which was tuned for speed rather than fuel economy. Today, the Superbird is remembered as one of the most exciting yet gas-thirsty muscle cars of its time.

1973 Chevrolet Camaro Z28

The 1973 Chevrolet Camaro Z28 is an iconic muscle car, known for its aggressive styling and 5.7-liter V8 engine. While it was built for performance, it came with a hefty price in terms of fuel economy, averaging just 13 MPG combined. The Z28 was one of the last true muscle cars before stricter emissions regulations affected performance vehicles. Despite the drop in horsepower compared to earlier models, the Camaro Z28 still offered impressive acceleration and handling. However, its fuel inefficiency made it a poor choice for those looking for both power and economy. The Z28’s performance and styling kept it popular with enthusiasts, even though its high fuel consumption made it an impractical daily driver. Today, it remains a beloved collector’s car but a clear example of the gas-guzzling nature of muscle cars from that era.

1974 Pontiac GTO

The 1974 Pontiac GTO was a notable muscle car that featured a 5.7-liter V8 engine and a sleek design that made it a favorite of performance car enthusiasts. Unfortunately, the GTO was not designed with fuel economy in mind, delivering just around 12 MPG in city driving. The car’s powerful engine offered exhilarating performance but came at the expense of efficiency. Despite this, the GTO’s performance was still impressive for its time, and it was known for its great acceleration and top-end speed. However, its poor fuel economy made it less practical as gas prices started to rise in the 1970s. The GTO was also one of the last of the original muscle cars before the era of emissions regulations took its toll. It remains an important part of automotive history, though it is remembered as a gas guzzler by many.

1976 Ford Mustang Cobra II

The 1976 Ford Mustang Cobra II was a smaller, more compact version of the classic Mustang, designed to appeal to a new generation of muscle car buyers. It featured a 5.0-liter V8 engine, which provided solid performance but came with a fuel efficiency penalty. Despite its more modern design, the Cobra II still struggled with gas consumption, averaging around 14 MPG. While the car was lighter and smaller than its predecessors, its fuel economy was far from impressive for a muscle car. The Cobra II was part of the Mustang’s effort to downsize, but it still retained the muscle car styling and performance that made it popular. Unfortunately, it could not escape the poor fuel efficiency that plagued many muscle cars of the era. While it is a collectible today, it remains one of the least efficient Mustangs ever produced.

1970 Oldsmobile 4-4-2

The 1970 Oldsmobile 4-4-2 was a muscle car that came with a 5.7-liter V8 engine, designed for performance but also notorious for its fuel consumption. The car averaged around 13 MPG combined, which was subpar even for the time. Despite its performance and iconic status, the 4-4-2’s poor fuel economy made it a less practical choice for everyday driving. It was still a beloved car among enthusiasts, known for its smooth ride and powerful engine. However, its gas-guzzling nature was undeniable, especially as fuel prices began to rise in the late 1970s. The 4-4-2’s balance of performance and inefficiency is what made it a classic, but its fuel economy has always been a point of contention. Today, it remains a desirable collector’s car, but it serves as a reminder of the inefficiency of muscle cars from this era.

1978 Ford Mustang II King Cobra

The 1978 Ford Mustang II King Cobra was a special edition of the Mustang II, featuring a 5.0-liter V8 engine. Although it looked the part with its sporty design, it was far from efficient, with a combined fuel economy of around 14 MPG. While the King Cobra’s engine was designed for performance, it could not overcome the inherent inefficiencies of its muscle car design. The car’s smaller size and lighter weight did little to improve fuel consumption, and it was still one of the least fuel-efficient vehicles in its class. Despite these drawbacks, the King Cobra’s performance, aggressive styling, and affordability helped it find its place in muscle car history. However, its poor gas mileage was a constant reminder of the sacrifices made for power. Today, the King Cobra remains an interesting footnote in the Mustang’s storied history, but it is not known for its fuel efficiency.

1974 Ford Gran Torino

The 1974 Ford Gran Torino is perhaps best known for its role in the TV show “Starsky & Hutch,” where it was the iconic car of the lead characters. It came with a 5.8-liter V8 engine, delivering power and performance but with a serious trade-off in fuel efficiency. The Gran Torino averaged around 13 MPG, making it a true gas guzzler by the standards of the era. Despite its larger size and comfort, the car’s fuel economy was far from impressive, especially as the oil crisis of the 1970s was in full swing. The Gran Torino’s powerful engine made it a favorite among performance enthusiasts, but it was not a practical option for those concerned about fuel costs. Its gas mileage, combined with its size, made it one of the worst in terms of fuel efficiency. Today, it is remembered as a cultural icon, but its fuel inefficiency is one of the defining aspects of this classic muscle car.

1974 Pontiac Firebird Trans Am

The 1974 Pontiac Firebird Trans Am was a performance car that featured a 6.6-liter V8 engine, offering exceptional power and speed. However, it came with a significant drawback in terms of fuel consumption, achieving only 12 MPG combined. While the Trans Am’s performance capabilities were impressive, it was quickly becoming clear that muscle cars like this one were increasingly impractical for daily use due to their fuel-thirsty nature. The car’s aggressive styling, paired with its performance, made it a standout in the muscle car market. However, its fuel economy made it a poor choice for those concerned about gas prices. Despite this, the Trans Am remained a favorite among enthusiasts, who appreciated its speed and handling. Today, it is a sought-after classic, but its gas-guzzling reputation remains a defining characteristic.

1969 Dodge Charger R/T

The 1969 Dodge Charger R/T is an iconic American muscle car, renowned for its aggressive design and powerful 7.2-liter V8 engine. With its high-performance engine, the Charger R/T could easily accelerate to high speeds, but it did so at a significant cost to fuel efficiency. The car averaged just around 12 MPG in the city, which was typical of muscle cars from that era. While its sleek design and power made it a favorite among car enthusiasts, the poor fuel economy was a major downside, especially as gas prices started to rise. The Charger R/T remains one of the most celebrated muscle cars, particularly for its starring role in the “Fast & Furious” franchise. Despite its fuel-guzzling nature, it is a highly sought-after collector’s car today. The 1969 Charger R/T’s high consumption of fuel serves as a reminder of the trade-off between muscle car power and fuel efficiency.

This article originally appeared on RetailShout.