Surely it depends on what engine an 850/P80 is fitted with? T5 is merely a designation to indicate the car is has a Turbo, 5 cylinder engine.
For instance the output of my '98 V70 T5 (P80) fitted with the B5234T3 engine is 240hp at 5100 rpm. It accelerates pretty fast when I put my foot down more so than the other possible engine options that it could have had at the time..
Bob
