It's entirely possible that the car having 4 more PP's might have the same amount of torque, but at a higher rpm compared to the other car, or having the same maximum torque, but it's slightly stronger over a wider range.. So it's possible that the car with 4 more pp's have the same maximum torque and Bhp, but the powerband might be slightly wider.
In like:
550 Nm of torque @ 4000 rpm is only half the power (bhp) compared to 550 Nm of torque @ 8000 rpm's.
Torque is nothing without revs.
It's of huge importance where in the rev spectra the torque is delivered. 👍
Engine A:
400 Nm @ 2500 rpm, 600 Nm @ 5500 rpm (Max torque)
Engine B:
250 Nm @ 2500 rpm, 600 Nm @ 5500 rpm (Max torque)
Both engines have the same Maximum torque and the same maximum Bhp, but engine A delivers a stronger powerband (which the PP calculation do take in to concideration) due to the higher torque lower in the rev spectra, and produce therefore more power earlier..