Start off with some pics, excuse the exterior.... 300+ miles on salty roads to get it home...Fully specced sport 4.2 V8 diesel. Loving it so far. Refined, smoother than anything ive ever been in!Few questions though... does it have launch control or a way to get it off the line quicker? I know you can brake boost but I don't want to shag up the gearbox. Does brake boosting affect the tiptronic box?Also on short journeys from cold (im talking ice cold) if I stop in traffic I can sometimes see a small haze of, I want to say smoke but its not, more like mist coming from under the right hand bumper. Im presuming this is something evapourating as ive had the bonnet up and can see no leaks etc. The haze does not smell like oil / fluid etc. Anyone else had this?