I grew up during the "Muscle Car " era,and I own 4 muscle cars (68 Mustang Fastback, 70 AMX, 71 Challenger, 72 Chevelle). Yes, 60's and 70's muscle is iconic. They are fast, loud, colorful and cool! But they are a chore to drive, a lot of them did not have power steering, or power brakes, very stiff clutches, and didn't handle very well.
Modern "Muscle", are a pleasure to drive, lots of power, responsive steering, comfortable interiors, decent mileage. No they are not yesterdays Muscle Cars and I'm glad they aren't. I'm glad they have evolved into what they are today.
Would I give up my cars for new one Never! But I sure would love to own a few of the new ones.
Is today the Golden Age of Mucsle Cars, no, but it is a New Age of Muscle Cars.