From the sounds, it seemed to detect it at the last moment. Can Model S owners confirm? Also, there are variable settings for breaking, right? Has anyone teste

From the sounds, it seemed to detect it at the last moment. Can Model S owners confirm? Also, there are variable settings for breaking, right? Has anyone tested what happens if they're intentionally set too low to prevent accidents? So many experiments I'd run with a Model S and an EM mocked up crash pad...