Good to hear from you - all I meant is I wouldnt waste time on something that doesnt give any "benefit" over a single-motor-per-side system, other than twice the drivetrain headache especially if something goes wrong; the track issue I mentioned, because you used plastic tracks as - they will break when used in a quad-motor setup, especially once a power failure happens to one or a pair of motors (board dies/battery goes flat/wire comes loose etc).

FYI 4 electric motors, one at each corner, is hardly a new thing, heck Porsche did it with the Ferdinand/Elefant and look how that turned out (expensive, too many wartime-scarce materials, complicated and slow moving)