[KenWittlief]

if you were trying to enter the auton offroad contest to las vegas, I understood your vehicle was required to have some sort of collision/obstical avoidance system

so if it only ran by GPS - that is probabally why your entry was rejected.

or maybe they evaluated your avoidance system approach, and did not believe it would perform as needed?

I would expect they would give you some report or indication of why you were rejected.