Racing, much like restoration, can have considerably different meanings to different people.

Personally, any car I was concerned with damaging, I would not put on a track, at all. Whether its solo, with a few cars, or a whole gaggle of other drivers. While certainly the risk of damage goes up with the numbers of cars and drivers present at one time, the opportunity for mechanical failure and/or driver error, means anything, even a solo car dodging cones, could potentially be damaging or deadly to the car or the occupants.