Great vids Dario - it's obviously very, very good kit you're using - not only is the image quality great but the sound track isn't ruined with wind roar, which so many track-based vids normally are.
That radical is immense - love the sequential box.
I'm guessing the speedo is GPS based and you have a box of tricks containing accelerometers for the G readings?
Gone but not forgotten:
325i M Sport (E92), Black Sapphire, Coral Red Dakota, 19" 225's, Seat Heating, 6FL and de-badge
Replaced by 6.2 litres of AMG powered C class.