Let's settle this, who makes the greatest American muscle car?

Technically the GT40 designed by Carroll Shelby and produced by Ford is the greatest muscle car ever produced. It was a vehicle designed out of hatred of Enzo Ferrari specifically to win at Le Mans. It won three years in a row. The first year the MKII, as it was know at the time, swept the podium. It took Ferrari 3 years and teams of engineers to best the plucky car built by Shelby. It is still the coolest looking car I've ever seen. So because of that one car Ford wins.

Just to clarify, how do you define muscle?

Dodge Charger .

To all the "lovers of the automobile" please keep in mind that there is one rule that applies to all auto manufacturers. All things are governed by the laws of physics!! It doesn't matter if you take a Chevy emblem and put it on a Ford or vice-versa the laws of physics still apply. Each individual automotive manufacturer (Ford, Chevy, Chrysler) all have contributed different, significant and very useful applications to the industry. Ford and Chevrolet have the two longest running car models of all with Corvette being the oldest and Mustang being the second oldest off all in terms of manufacturing. Corvette began in 1953, and Mustang in 1964 1/2. But truth be told all have always played follow the leader when it comes to Ford. Even today the Camaro which was brought back after the retro introduction of the 2005 Mustang was brought back but shall again die a slow death (again). and now Chevrolet has introduced the new Corvette as a Mid-engine which replicates the GT-40. Ford is also the only American auto manufacturer to EVER win the 24hrs of Le-mans. Not once, not twice, not even three times but FOUR years in a row. (Ford v.s. Ferrari). Automobiles are an extension of ourselves. All my cars have names and are treated just like one of the family. I am often saddened when I have to give one up or it "dies." To say one is better than another is simply a personal preference. I love all cars (except Yugo's). I've been into American muscle since the 60's and I even own a 1st Gen and 5th Gen Mustang. But I love 70's Chevrolet's and Dodge/Chrysler/ Plymouth's too, I even was a slight fan of AMC (Javelin, AMX,) I am a Blue Oval fan true and blue......
https://corporate.ford.com/articles/history/1901-sweepstakes-race.html

None of the above. One word - HEMI. By Mopar.

I am a die hard Ford guy, that being said there is not an American Muscle car I wouldn't be proud to have in my garage.

America's Sweetheart is Chevrolet.......the Heartbeat of America! The Trifives donated and still dominate the Drag strip! And the pre 1973 Corvette 454 was hard to beat.

Ford vs. GM vs. Chrysler

Engineered by those who went to the same engineering schools.
Managed by those who went to the same business schools.
Designed by those who went to the same design schools.
All built by the UAW.

Verdict: Don't overthink it; just go with whatcha like.

This did just happen recently..

http://media.chevrolet.com/media/us/en/chevrolet/home.detail.html/content/Pages/news/us/en/2017/jun/0622-zl1.html