Unstable vehicles with a high center of gravity and a narrow track, includ- ing SUVs, minivans, and 4WD pickups, must be excluded. Examples of such vehicles are listed in Appendix A. Extra caution should be exercised with non-traditional vehicles (e.g., trucks using racing slicks).
In the SCCA Solo Rulebook for 2021, it shows how to figure the rollover quotient. It's figured by figuring the track length and overall hight of the vehicle. If it is considered similar to the Subaru Forester in size, it would be excluded.