I finally had the chance to explore two (popular) slotcar questions:

Who drives better – man or machine?

At what Voltage does the computer beats the human driver and vice versa?

How much does the slot car speed increase starting at 7 Volt  in 0.5 Volt increments?

All data was taken using a Slotcar track based on our outdoor RC Rally track.

Results:
Computer can’t drive slot car over 11 Volt – Car becomes to fast in corners
Ideal Voltage for Human Driver appears to be 17 Volt – At 17V the slot car has the best acceleration, breaking and top speed balance.