After a few years of regulation stability, Allison said the changes coming for 2014 - notably the 'ERS' energy recovery systems and V6 turbo engines - represent a "tsunami" for F1.
So important is the change, that some suspect Lewis Hamilton's Mercedes switch for 2014, for example, was motivated primarily by the German marque's promise regarding the new rules.
"I am convinced that was the decisive factor," veteran reporter Tony Dodgins is quoted as saying.
"Lewis knows that a team must have close ties to a manufacturer for the new turbo era. And he also knows Mercedes will cease development for 2013 early in order to put everything on 2014."
Indeed, Briton Hamilton sounds prepared for whatever 2013 will bring.
"I'm not worried," he is quoted by France's L'Equipe sports daily.
"I am quite prepared to finish the first grand prix in fifteenth place."