I've posted every Custer bumper car and wheelchair I've found, and I've never seen the 1931 Custer Cootie Special as nicely restored as this

https://www.autoweek.com/car-life/g1739916/kids-race-cars-exhibit-petersen-museum/?slide=25

https://journal.classiccars.com/2018/12/15/petersen-museum-showcases-los-angeles-city-of-speed/

There is even a facebook page for Custer Cars now! https://www.facebook.com/CusterCar/

These were made between 1928 and 1931 from what I can figure out, and they were powered by a 12 volt General Electric motor powered by 2 batteries under the hood. 

The Cootie was a success primarily used for transportation at beach front boardwalks & by amusement parks as a kids bumper car

https://www.invaluable.com/auction-lot/rare-1928-custer-model-cootie-car-250-c-40e473cac4