All this makes me wonder whether all the problems with the Voodoo engine that I mentioned above could be secondary to the vibrations caused by the combination of the inherent imbalance of the FPC V8 and the long stroke.

GT350 is being dropped...
Don't forget there already is a GT350 owners lawsuit against Ford, which claims that transmissions and differentials on their GT350 cars allegedly overheat at high speeds, sending the car into limp mode, specifically during use on the track. Exactly the same thing that happened to my 2018 PP1 on track at Road America last year, in only 12 minutes on track! Sadly that lawsuit does not include my car and only the 2016 GT350.If the Voodoo engine has those kinds of problems, I would expect a class action suit to follow.
Ford would have to be careful about gearing. Make it too tall for mpg purposes and it'll compromise away the added power in normal driving. Might be better to re-gear the MT (again) and maybe introduce skip-shift. I could see the automatics getting an earlier-upshift algorithm, at least in 'Normal' mode (which has posed a rather unsettling question unrelated to transmissions).Norm, you made a valid point about Ford having to meet increasingly strict CAFE standards. If the Mach 1 is intended to become a substitute for the GT350 and Bullitt models, Ford could give it taller gearing to improve its highway mpg rating and perhaps avoid the gas guzzler tax. Another potential fuel saving measure is cylinder deactivation during highway cruising but as far as I'm aware, that hasn't been developed for use in the upcoming Mach 1.
Ford would have to be careful about gearing. Make it too tall for mpg purposes and it'll compromise away the added power in normal driving.