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10 Forgotten Muscle Cars That Were Sleeping Giants

10 Forgotten Muscle Cars That Were Sleeping Giants

The car industry boomed numerous time, specifically when the muscle car era came in the ’60s. The Muscle car had ups and downs over time and the 1970s was possibly the hardest decade for it. To top it off, building a great muscle car back then was almost like gambling because some cars ended up being unforgettable, others became utter failures and some were still great but fell into the terrifying abyss of the forgotten.

These are the Forgotten Muscle Cars. In some countries like India, most muscle cars aren’t even heard of, except ones like the Ford Mustang. But what about the Forgotten? The first Forgotten Muscle Car on the list is this.

The Oldsmobile 442 FE3-X Cutlass, also known as the Oldsmobile Darth Vader.

10 Forgotten Muscle Cars- The Oldsmobile
10 Forgotten Muscle - The Oldsmobile Image 2

Based on its cousin the Hurst, this car was meant as a concept eventually sold on street. It was equipped with a 5.0 Liter standard 307 c.i. V-8 cylinder, a truly dependable block that had such great quality, it was even equipped in Cadillacs. This car was destined to be on the race track according to the company but its life was short lived.

It had very interesting features like the special tent/black-coated grill (which is where the “Darth Vader” nickname came from), humongous ground effects and unique cast alloy rims.

10 Forgotten Muscle Cars - Darth Vader

Unlike the average large-body muscle car for the time, this car produced a sad 200 horsepower and 250 lb/ft of torque at a heavy 3600+ pounds. The car’s performance was okay but disappointed the testers. The car sold less than expected and therefore had a short life, only being sold to the public for a year or so and sooner or later forgotten.

The car maybe wasn’t the best from Oldsmobile but was unique/incomparable to other muscle cars and that’s what made it special. Sadly, the car just didn’t get the recognition it deserved.

Chrysler 300B

As famous as the 300C was, the 300C was named the First American Muscle car and was given the title of Fastest American Stock Car, but was really just a personal luxury car and was the weakest of its siblings: the 300B, D, K ,etc. Let’s start with the 300B.

10 Forgotten Muscle - Crysler 300B
10 Forgotten Muscle Cars - Chrysler

With modified tailfins and a bodily change here and there, it was literally successor to 1955 300C. The B which debuted in 1956 with a 5.8L 354 cubic inch engine, this car produced an amazing 340 to 355 horsepower, straight from the factory.

Only 1,102 were produced in 1956, the only year of production. What a sad ending.

Chrysler 300D

10 Forgotten Muscle - Chrysler 300D

1957 was the year the 300C was brought back. But in 1958, they renamed it once more, this time as the 300D. This version had the 392 of the 1957 300C but this time had a 6.4 liter and this big boat could max out at 392 horsepower!

This was the Base version, but a small number had fuel injection which caused problems and was soon replaced with twin-quad carburetors.

The car topped out at over 156 miles per hour. Only 809 were produced and 1958 was the only year the car was produced. The car looks weak and friendly, but any person that is a muscle car fanatic can tell you this is the perfect example of a sleeper!


10 Forgotten Muscle Cars - Chrysler 300E

With a 413 cubic inch 6.8L (man, that’s big), it was inefficient because it produced 380 just like the previous models, but this is still a lot of power. The car had swivel seats.

Only 647 were produced in 1959.

The last 300 I want to talk about is the “Short-Ram” or Cross-Ram version 300F

A tuned 300F, simply because the 300-Series was getting boring, so Chrysler took the 300E’s 413 cubic inch 6.8L engine and installed what was called the “cross-ram”, a special Chrysler intake manifold.

(A retired Cross-Ram)

A racing version of 300F was introduced and the car was known as the “Short-Ram”. Long story but the horsepower was boosted from 375 horsepower to 400 hp.

Cross-Ram block.

The toilet-seat trunk caused people to question their liking to the car so Chrysler threw the entire project in the trash that same year in 1960. Only 15 “Short-Ram” Chryslers were made.

ASC McLaren(Mercury) Capri: I’m not done yet but will include many more.

10 Forgotten Muscle - ASC McLaren

American Specialty Cars (ASC), in the ’80s known as American Sunroof Corporation took Mercury’s Capri(1970–1994) and reshaped a lot of stock parts around the car.



ASC changed the camshaft and other things like the tire size, roof(convertibles)/basic fine marks on the sides. They also changed the wheels, installed Campagnolo head/taillight covers, w/ground effects to finish off.

Only about 600 of these were produced from the 1984–86 production run.

Chevrolet Corvette L88

10 Forgotten Muscle - Chevrolet Corvette L88

As you all know, the Corvette had an unbelievable number of different packages to choose from and one special racing package Chevrolet offered for the Stingray was the C2 Stingray, C3, later the C7 Stingray and the ZR1 today (the C8 which will debut in 2020), code-named the L88.

I’m sure there were even several versions, but one I just HAVE to point out is the C3 L88, equipped with a 427 cu in., a 4-speed manual transmission and three carburetors, usually what you’d see in a muscle car, but this car topped out at 171 miles per hour – NOT common in muscle cars ever. The car could produce between 550–570hp.

This car gained popularity almost over night, winning famous races like the Sebring 12-Hour Race or even the Daytona 24-Hour.

The car was water-cooled.


They only made these cars from 1967-1969.




Daytona Version(‘68):

These cars are going up for in between $3,000,000–$4,000,000.

EDIT: WIll Add more cars

AMC Javelin

Sold from 1968 to 1974 with two generations globally, this car seems to be more respected for it’s racing status rather than just being a muscle car.

10 Forgotten Muscle - AMC Javelin

The engine variants determined the class. The pony car version had a 3.8 Liter 232 c.i and a little less than 150 bhp with a lazy 0–60 in 11.8–12 seconds(depended on transmission).

It only topped out at 108mph. But this first 1968 muscle car version had a light 290 c.i. from Ford(1966), 225 horsepower, an 8.1 second 0–60 and a top speed of 122; large difference and this is what made the car feared among opponents.

The 343 was introduced in 1968 as well; 280+ hp with a scary 7.3 sec. 0–60, a top speed of 131mph and the car barely weighed over 3200 pounds.

The car was then entered into the Trans Am Series where at the time, many cars from various classes and upgraded bodies competed. The AMC won twice consecutively and 3 times in all.

The car seized production along with the entire company. Sad.


American Motors designed a concept car in 1966. In 1968 the car was renamed the AMX(American Motors Experiment), equipped with a new 390 c.i. with 315 horsepower as an additionary engine with 3 fractory transmission choices available.

10 Forgotten Muscle - AMC AMX

The car was unusual for its class b/c it was a two seater and therefore uniquely similar to the Corvette.The crankshaft, bearings etc. were larger than that of the 343.

Chevrolet International Race of Champions

As stated by Wikipedia, “IROC” redirects here. IROC may also refer to the Chevrolet IROC-Z Camaro, the Dodge Daytona IROC or to the Volkswagen Iroc concept car.”

“Not to be confused with Race of Champions.”

“International Race of Champions (IROC) was a North American auto racing competition, created by Les RichterRoger Penske and Mike Phelps, promoted as an equivalent of an American motorsports All-Star Game. Despite its name, the IROC was primarily associated with North American, oval-track racing.”

The Chevrolet IROC-Z or simply known as the IROC was Chevrolet’s version of the pony car designed for the racing division of which it was named after. ’82(kind of ‘85) to ’92 was its production run. The car is one of the top muscle cars for car enthusiasts.

Its full name is the IROC-Z28 as it was meant to be a tuned up version of the Z-28;

348c.i but with 5.7L under the hood. It only had 220hp but 320lb-ft of torque

0–60mph in 6.4 seconds with a top speed of 146mph.

See the source image

A lot of you are saying this car isn’t forgotten and its certainly more remembered than the other muscle cars here, but after knowing about the car’s original recognition and the legacy it left behind, you’d probably agree. This was one of the most stolen cars in the 1980s.

Pontiac TransAmericana 455 Diesel 7.5L

The once booming muscle car class was utterly destroyed by the oil crisis, increasing insurance liabilities, etc. Another muscle car born in the wrong decade – the 1970s.

10 Forgotten Muscle Cars - Pontiac TransAmericana 455

Just over 300 horsepower but over 500lb of torque! Originally anyway. In that day and age, muscle cars were forced to become economical with people now thirsting for cheap economy cars altogether, destroying muscle car sales. I guess Pontiac thought, “let’s go out with a bang” or something so they introduced this tank w/ it’s Formula brother.

10 Forgotten Muscle Cars - Pontiac '72


1971/1972 were when Pontiac tried to show off its new ‘invention’ but they were forced to delay until ’73 due to gov’t regulations. Changing a lot of things(long story –

“By the time Pontiac recertified the engine, with a revised camshaft and commensurate carburetor adjustments, the horsepower rating was revised down to 290. It was the spring of 1973, but the cars didn’t roll off the line in meaningful numbers, creating a significant customer relations problem. The company had stacks of preorders for cars it couldn’t deliver. By the end of 1973 only 295 Super Duty-powered Firebird models had been built: 252 Trans Ams and 43 Formulas.” – 1973-1974 Pontiac Firebird and Trans Am Super Duty

The 1971/72 = 0–60mph in 5.1 seconds with a top speed of over 150mph. Don’t know if Pontiac changed the 71/72 models

The revised version for 73/74 = 0–60 in 5.4 seconds/a top speed of 132+mph.

This was still astounding and even today with all the models and variations this is still amazing, especially for a rear-wheel 3800lb gas guzzler like that.

10 Forgotten Muscle Cars - Pontiac '74


For some, it was disappointing to lose some of the power it had. The new EGR(exhaust gas recirculation) took a lot of it away. Pontiac decided to be sneaky and installed a solenoid to shut it off after 53 seconds. The EPA caught on and made Pontiac remove its solenoid and paint the engines a different color so the inspectors would know if the solenoid was replaced.The SD-455 package was an option for the division’s Grand Am, Firebird and Le Mans, then reduced soly to the Firebird Trans Am/Formula.

During this short 3 or 4 years, the vehicle was an astonishment to car enthusiasts. Today they go up for about $200,000 at auctions, mostly because of its small production numbers(about 1300). Sadly, the cars legacy and even the car itself is rarely mentions and many people haven’t heard of this amazing car.

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