Thank you , again, John,

The Parallax products look just about right. They also seem to offer plenty of support.

Initially I would have no obstacles out in the lobby of the gym. The car would still have to make a 360 turn to find the light at the exit door, then go to it. If I place the light correctly the car would reappear to the RC transmitter person once it reaches the light.

The RC car suspension could be challenged by putting wooden ramps in the gym floor course. The type of tire affects their skidding. Which in turn affects their turning ability at speed.

Thank you again and again for your help.

What do you do professionally? How did you get so involved in RC/auto
flight?

Ken