[Buzz]

Slightly back on topic - when evaluating what the modern performance cars bring to the table compared to old school muscle - with the 427 Cobra as the benchmark - it's not just about power/weight ratio. That is more of a factor when comparing the 60's bruisers against each other, and to a lesser extent among the modern cars. Technology, electronics, layout and design all need to be factored into the mix. I'll always love the purity of the Cobra, but that doesn't stop me from acknowledging and appreciating the incredible cars they're rolling out today. Yes - they're heavier, but they're also faster, safer, more comfortable, handle better and stop better than anything from the 60's.
To illustrate:

'66 COBRA 427---2280LBS---HP/TQ 485/460---0-60 4.5---TOP SPEED 165
'67 GT350---------3241LBS---HP/TQ 306/329---0-60 7.0---TOP SPEED 140

'20 GT500-------*3950LBS--HP/TQ 760/625----0-60 3.5*---TOP SPEED N/A
'17 FGT-----------3047LBS---HP/TQ 647/550----0-60 2.9----TOP SPEED 216
'18 ZR1-----------3669LBS---HP/TQ 755/715----0-60 2.8----TOP SPEED 210
'20 STINGRAY-- 3600LBS----HP/TQ 495/470---0-60 2.9*---TOP SPEED 200*

*est.