@all: thank you all for the nice welcome.
@RTZSS: perfect that I am not alone in Stuttgart. I am searching for streets where one can "loosen the Zs reins"

or cruise. The Solitude racetrack is currently limited to 60kmh. Today the whole track was under police supervision.
@JackZ28: thank you for the clue

. I used the cruise control - 140kmh is a comfortable speed - but then I have to show this "left lane subscribers" a Mercedes T, a SLK and a dressed to kill Calibra the beautiful backside of the Z

. So I let the Z run with 200kmh for a while. At 215kmh the car have little vibrations and I stop to accelerate more and let him fall back to 200kmh. Do I need those SFCs what I read on the board to avoid hazardous situations relating to the fbodys structure ?
@KC10A: thank you. I look forward meeting you too. I will complete my contact informations as soon as possible.
BTW: My spoken english is rusted. My last experience with native speakers is long ago (8 years I think). It remains to be seen if I can follow a conversation in full speed.
Oh 5 hours to the daily humdrum. My best Easter is ending now.
regards
Lutz