RE: Is wet power a dead end?
Most of the posts so far, [including mine] aren't addressing the original question in the context of how it applies to EXTREME SPEED MODELS.
The engineering types who know about the energy unleashing potential of fuels VS battery chemistries and who know about relative onboard weights involved are who we need to listen from.
So far, the biggest, most glaring difference I see with the equipment we have right now...is aerodynamic.