Some dude who agreed to one of these extended challenges released a video exposing the behind the scenes abuse they do to get you to stay as long as possible so they get more content from you. Their whole investment of time and hype isn’t worth it if you leave after a few days like you’re tempted to. It was pretty disturbing, I believe it’s still on YouTube.

The only set ups that aren’t as abusive imo are the ones that can only last so long and are in public. I believe one was whoever keeps their hand on the car the longest wins the car. That one is pretty harmless with a decent pay off.