Phosphoric, you press a button on the right inside and it pops out. It was on the demo car since I asked what does this button do. It stopped the virtual pedal working, think that's a feature when it's out since you would fall into the caravan in anycase trying to use it. You kick it back home and the virtual pedal is usable again.
I know all this since the sales guy didn't know why the virtual pedal had stopped working and hadn't noticed the button had released the tow bar. Perhaps I should have specified one for that move to the countryside and those trailer tip runs or not. Will get a bootliner.