Mapping dynamic racetrack

While mapping a rural area, I found a farmyard with a racetrack in their backyard, that appears to be changing from year to year according to aerial imagery sources. Coordinates are 53.2077225, -113.1251264 according to JOSM. Should I map the area of the maximum extent with highway=raceway and area=yes or should I just not map this given its dynamic nature?

Mapping the enclosing space is fine. It’s helpful to add access=private for things like this so that folks can easily filter them out of their searches.