Also, hybrid boats have been around a long time... they are called bass
boats... most have a 100-275 outboard and a trolling motor or 2 for
slow/quiet operation.

I'll have to pull out my 1963 Evinrude "FasTwin" 3Hp soon to put on the
pontoon boat.
I bought it in 1968 when it was 'almost' new.