Hiya,   I've had the 2019 VRS 240ps DSG for about 5 months now. It's done about 4000 miles.   Upon WOT, and most noticeable in 3rd gear, once it really starts pulling about 4000rpm, the back windscreen is white from all the steam(?) coming out the exhaust.   I put it down to it blowing all the condensation out of the exhaust but not sure there's that much in there. I also wondered about water injection but don't know where that would be stored. Finally thought it co