Here is the first step towards a working prototype.

I needed a development mule, so I purchased the cheapest Full Function RC truck I could find on Amazon, $18. http://amzn.com/B00SMA57EE.

The tear down is highlighted in the gallery. You can see the car as it was, some closeups of the logic board, and some quick splicing I did to test the car's ability to run at lower than advertised voltages. The video demonstrates the 3V performance.