Let me explain:
Horsepower is a unit of work per minute .
Horsepower is Torque x Velocity ÷ 5252
or Torque x Rpm ÷ 5252. But the later the peak
torque the more horsepower it has .
For an example the Mercedes Amg G63 has 627 lb-ft
,and only 577 HP ,but it can rev to 7000 RPM .
It simple term If the car make 1000 lb-ft at 4200 RPM
,and redline at 7000 RPM the would only make 800
hp due to early torque . If the car make 1000lb-ft at
5000 RPM the car would make 952 hp .
So the moral of the story is hp don't actually count
the maximum torque and velocity that the car could
reachs .