Introduced in 1978, AMC Spirit AMX was an actual compact muscle car due to the fact it had an optional 304 V8 engine, rear-wheel drive, and manual transmission. AMC designed it as a performance version of the Spirit compact car (via Silodrome).
On sale for just two years, the Spirit AMX had some success due to the fact it was inexpensive and cool-looking. The AMX package included a body kit, special livery, and wide wheels. Unfortunately, AMC decided to kill the model, and the Spirit AMX did not return for the 1980 model year.
We all know Plymouth Roadrunner as one of the quintessential classic muscle cars that always had performance and power. However, for 1975, Plymouth moved the Roadrunner as an option on the Fury line (via MotorTrend).
The Fury Roadrunner had a 440 V8 option with 260 HP on paper. Despite this being a respectable number for the day’s standards, the 0 to 60 mph times were over eight seconds which is something that today’s cheapest economy cars can match. As a result, sales were pitiful.
When the Javelin AMX was discontinued, AMC was left without any muscle car in their lineup. So they quickly decided to introduce the Matador X. The Matador was redesigned for 1974 and featured a signature coupe body style. The company presented the “X” package, which could be had with 360 V8 or an optional 401 V8 with 235 HP (via Old Cars Weekly).
Regardless of the dress-up kit and big V8, the Matador X wasn’t any faster than the Javelin and the option was killed after only one year as a result.
Domestic car buyers were pretty surprised when Pontiac introduced an attractive 2+2 package for its popular luxury coupe in 1986. It was a muscle car the company had lacked since the late ’60s and an interesting version of the rather dull Grand Prix (via Hemmings).
Very similar to Monte Carlo SS Aerocoupe, the Grand Prix 2+2 used the same platform, rear glass, and rear spoiler intended for NASCAR races. Unfortunately, Pontiac didn’t provide 2+2 with exciting performance since all cars got the 305 V8 with 165 HP. On the other hand, Grand Prix 2+2 handled much better than the Aerocoupe because of its gas-filled shock and stiffer springs. Pontiac produced this model for two years, making only 1225 cars while eventually discontinuing the model.
Even though the Charger from the late ’70s was a slow car that threatened to kill the muscle car reputation of the glorious late ’60s and early ’70s cars, Dodge felt that the name deserved another chance (via Classi Cars).
In those days, the Chrysler Corporation was all about K-platform front-wheel-drive cars. Dodge introduced the Charger as an option on a compact and boring Dodge Omni in 1981. The appearance package proved somewhat popular, enough to convince Dodge to try it as a separate model for 1983. That was how the L-Body Charger was born.
Ford built this exciting car with the help of the well-known McLaren racing team. The whole idea behind the project was to take the 2.3-liter turbo engine from the regular Mustang and transform it into a street racing beast. They added a race-tuned suspension, a lightweight body, and a host of other modifications. McLaren and Ford installed a tuned turbo engine with 190 HP. That was a big number for the day, especially coming from 2.3 liters (via The Drive).
They changed the looks of the Fox Mustang, as well. The updates resulted in a performance level that was good for the standards of the day but is quite embarrassing today. The driving dynamics were excellent, but the car came with a high price tag, making it a sales failure as a result.
The mid-’70s weren’t an especially good period for Olds performance. When the new compact Starfire model was introduced, Olds engineers decided to present the performance version of this car. This model was called the Starfire GT and was an appearance package on a regular Starfire hatchback (via Motor Trend).
With unique body stripes, color, details, wheels, and stabilizer bar, the Starfire GT was more dynamic than the regular model and the closest thing Oldsmobile had to a sports or muscle car in 1976. That still wasn’t enough to make it rank anywhere near the best muscle cars.
The second-generation F-Body Firebird was introduced in 1970, and by the late ’70s, was one of the dominant cars in the segment. Unfortunately, the days of big cube motors and high horsepower ratings were gone, so Pontiac decided to invest in new technology to generate power. That new technology was turbocharging, and in late 1979, it introduced the Trans Am Turbo (via Driving Line).
The engine in question was a 301 V8 with a Garrett turbocharger bolted onto it. The power output was relatively modest at 200 to 210 HP, but the torque number was high at 340 lb.-ft, which resulted in a hint of performance. However, it was miles away from the big-block performance Firebird fans had come to expect from the model.
The 1977 Z/28 Camaro was an essential model for the breed. It marked the return of the Z/28 package and a slight power increase over standard models. The 350 V8 delivered 170 HP, which was respectable in 1977 (via Hemmings).
Of course, the performance was just a shadow of what Camaro was capable of just several years before. But it was the best you could get in the late ’70s. Also, the 1977 Camaro Z/28 will be remembered as a cool-looking car despite its lack of real Camaro performance.
The glorious big-block El Caminos of the late ’60s were long gone in the ’80s. When Chevrolet introduced the SS option on this pickup in 1986, it included a 305 V8 with 150 HP (via GM Heritage Center).
As you expected, this wasn’t a performer as the name and legacy suggested, but only a dressed-up regular El Camino. Production on this model ended in 1987 and the SS option was soon forgotten.
The first year for the modern GTO was 2004. The car met universal praises from buyers and car press. Its design wasn’t exactly new or aggressive, but the new GTO had the muscle car form and street presence. Under the hood was an LS1 5.7-liter V8 with 350 HP. It had enough performance to be one of the hottest American cars for the 2004 model year. The target sales figure was 18,000 and Pontiac sold almost 14,000, which showed that buyers weren’t impressed (via Edmunds).
The 2005 model year saw the introduction of the 400 HP 6.2-liter engine. It had even better performance (0 to 60 mph time of just 4.6 seconds). Sales started to decline and by 2006, the final model year, the GTO was being blamed for singlehandedly causing the downfall of Pontiac as a brand.