Never going to happen as if the car was a maual it would probably roll away on steep hills , my 2004 T5 did roll away even in first gear with the handbrake on . We live on a very steep hill and I had just driven home so the rear discs were still hot and were holding fine , after 30 minutes or so when they cooled it slowly rolled back wards against the engine compression . Ok it did have over 300000kays so compression was a bit lacking took out a few shrubs next door after it mounted the footpath and finally stopped agains a beat up Hyundai Sonata and a telegraph pole about a hundred metres down the hill .