Originally Posted by BatteredBenz

All available and applied electrical energies being equal, multiple spark gaps only increase the probability of multiple sparks all of which would individually be weaker than a single full energy spark, pretty much guarantee that a single powerful spark is better than multiple lesser powered sparks even if cumulative, based on the near universal dominance of the single powerful spark across automotive engineering right up to the present.

Now multiple powerful sparks such as multi-plug heads have some advantages but of course will require more spark producing energy.

But there is not much evidence the larger power supplied to multi sparking plugs offer much advantage or they'd have been incorporated into the range of automotives more widely.