The new muscle cars are not rock friendly. When driving in the Untamed and Torque if you come over a hill and drive into a rock, or catch a small amount of air and hit one, the car instantly blows up. I have seen whole teams die this way multiple times, I get a good laugh when a coward runs away and a rock instantly kills them. From what other people have told me this happens on other vehicles as well. The Racer and Gizelle apparently do the same thing after talking to a team about it.