Tackling some open questions at smaller scale.
Rear wheel drive, differential gears
<aside> ⚙ Decision (2020-11): Will go with a belt/chain drive system and not a differential gear. While cool, they seem to be uncommon on go carts and so hard and expensive to purchase. Some folks have build their own from separate gears, but I think that's probably beyond my current skill-level and a rabbit hole I don't want to get into at this time. I can always revisit this later.
Based of power tool battery
Got this to work, surprisingly easy
TODO: add link to makita adapter thingy
Electric DC motor attached to tool battery
<aside> ⚙ Decision (2020-11): Will try to use 1 or 2 (in series) Makita 18V batteries for powering the kid car. I've been able to get