Saved my drive on Sentieri (Unter Rainsberg) as a replay and I then loaded it from the Replays menu. Static until I saw that my control inputs were live, but the cameras were all replay cameras. FUN CHALLENGE! I tried driving the stage (remember to release the handbrake at the start) and made it to the second camera before falling down the hill. For fun and amusement, I suggest you try this while it is still doable. Eventually it will just be normal replays.