Without overboost, i think it's the Power of the non PE GT.
After 15 sec you regain full power.
I can't link the details, but you find it in the press Release in the documents folder.
Hi guys. Don´t know, if this was mentioned yet, but it´s not news, that the overboost ist limited. https://mustang-mach-e.fordpresskits.com/
In the documents.
"Calculated via peak performance of the electric motors at peak battery power. Your results may vary. 487 PS performance...