Hello, this is a tweaked and revamped version of @sebarex 's guide on how to make a working car. I read his guide and it felt a little not descript and had only a few pictures, so I am making a revemped version to help who didn’t get his guide. I will be using wires, as it is the easiest way for me to do it.
Once you have that step completed, you may attach the repeater with 10 counters each numbered 1-10 for target value. This is how it should look like once the step is complete:
Now, add wires connecting the counter to the rovers. Make sure for each new counter and added show once target value reached, the rover behind it hides. (you may also use channels, but I used wires because it is simpler.)