[2020] E60 M5 2006 100 - 320KM/h in tunnel / the best sound

Please understand that the screen angle is bad.
AM 3:20 with no one present.
g3 - 7900 rpm
g4 - 7900 rpm
g5 - 7800 rpm
g6 - 7950 rpm
g7 - 6950 rpm
Maybe I can reduce gear costs even more.
The s85 engine has a standard 8450 RPM shift.