Looks like the "extra 10 seconds" and the "extra life" are now permanent. Guy mentions that with the extra 10 seconds, you can DEDUCT 10 seconds from a challenge... but I don't understand why ANYONE would want to do that.
I would think, if they have the option to DEDUCT 10 seconds, then there should be extra stakes... DOUBLE the stakes if a player can complete a stunt in 50 seconds. If the player fails a stunt at ANY point, they lose a life AND the stakes go back to the original values.