As for the FE chatter...I am convinced we see the E85 release. Too much smoke, so I guess there is fire. How exciting is this?  If this is all it is (fuel) I think I'll be pretty meh tbh.  If it noticeably goes beyond what a Demon is (trans brake, intercooler, line lock, drag radials, very specific mass transfer drag suspension) I will consider it.  Then again, I may not even have a choice depending on the numbers produced and the ability to get it at MSRP (both unlikely).
And all of this assumes it's a Challenger.  If it's a Charger, zero interest.