Classic vs. Modern Muscle...help?!

:confused:I'm writing a paper for my ENC class, compare and contrast, naturally I chose cars, wanting to do a paper on the differences between the classic muscles, like the challenger, stang, camaro, and their modern day counter-parts. Anyways I didn't really know where to start and there's not a whole lot of comparison info out there, of course maybe I just couldnt find it...anyways ANY IDEAS, COMPARISONS, ..HELP..would be much appreciated. Thanks
- - - FLA. Boy