The Fórmula-E powertrain allow those cars to race 45 min. In Rally, With more braking (regeneration) and slower top speeds (energy consuption) PLUS next season fast charge tech that will be used (tech in development - using motorsport to do so).. Could that kit perform?
I cant math properly like an engineering but my bias is more on the "wrc can be electric with current tech and under some little tweaks on the format" but hardcore fans simply dont want to lose the engine sound.