I remember (way) back in the day that many of the Slot Car Tracks that we frequented had coin-op games also, usually pinball or video games or both. This is less often seen in my observation these days. Lucky Bob's had two pinball games in a "back room" area the last time that I visited there.
Buzz-A-Rama in Brooklyn still has both pinball and video games according to a recent interview with Buzz.
IIRC Joel's Race Place had Pool Tables too; I remember Bob Rule getting up on one of the tables and doing a Yo-Yo demonstration during a break at one of the major slot car races.
A certain number of early lap counters used pinball score counter mechanisms for lap counting. Including the American Raceways automatic race director system (see below).
To me, slot car racing and coin-op gaming seem to be a natural combination and might just be a draw to bring people into a shop. At the very least they could bring some additional revenue to the raceway owner.
The question is this- does your local raceway have coin-operated games in addition to the tracks? If so what do they have?