Folks can hate on these all they want...

Having recently owned a 2013 Mustang with the Coyote 5.0 and a 2011 Camaro SS 6.2 LS3 motor, I can attest to just how quick these modern muscle rides are. I have not owned a 6.1 or 392 Challenger, but I did have a 2005 Magnum R/T 5.7 hemi. They are all impressive packages on their own right, but also all were naturally aspirated and I can't draw any comparison to the Demon or Shelby GT500 and the supercharged powerplants those cars offer. I just find the power levels available in today's factory hot rods as a modern marvel, regardless of how they are achieved, and these cars all get respectable fuel economy besides. That part is what is truly amazing.