Done a search with no answers. My mate who has a RS4 has just said that he thinks in an RS4 you can select between ESP: On, Off, Half-off. Half-off is selected by a single press of the ESP button and Off by holding the button down. He said that the 'Off' feature is an RS4 only feature... I find this odd, and frankly won't believe it until its confirmed from multiple reliable sources. Surely the button is there for when you want to turn the traction control off, so what you push the button, it's off. Perhaps RS4s have a 'half-off' setting which other models don't, this is much more feasible. Can anyone confirm this??