Torque curves of car2 and car3-trb1

Dear folks,

I have noticed that, if one works out power from the torque curves of car2 
and car3-trb1, one gets a monotonically increasing function until (at 
least) 9000 rmp. In a table,

car2-trb1        car3-trb1

rpm    T (Nm)    P (HP) | T(Nm)    P (HP)
0       100       0     | 90       0
1000    220     31,35   | 230     32,78
2000    310     88,35   | 350     99,75
3000    370    158,18   | 450    192,38
4000    420    239,4    | 530    302,11
5000    460    327,76   | 520    370,51
6000    490    418,96   | 500    427,51
7000    500    498,76   | 475    473,82
8000    485    552,91   | 450    513,01
9000    465    596,37   | 415    532,25

The redline is located at 8500 rpm for both cars, and that berniw2 switches 
gears at around 7.8k and human.so auto-switches at 0.85*redline (slightly 
under 7.5k). This means that both berniw2 and a human using automatic 
shifting are missing over 40 HP, aconsiderable amount of power (especially 
when compared to car1-trb1). I'd also like to note that CVS car5-trb1 also 
suffers this to some extent, although it is less marked because P(8000) and 
P(9000) only differ in 7 HP.

My question is: is this an intended behaviour for punishing lazy human 
drivers and lousy robots? If not, would new torque curves, keeping the 
general aspects of the originals, be welcome?

Finally, an off topic question, if you don't mind. Is there a reason why 
most cars have turbos assigned in their xml files?

Regards to everybody and sorry for a lengthy first post,

Miguel
-- 
----------------------------------------
Miguel Martínez Canales
    Dto. Física de la Materia Condensada
    UPV/EHU
    Facultad de Ciencia y Tecnología
    Apdo. 644
    48080 Bilbao (Spain)
Fax:  +34 94 601 3500
Tlf:  +34 94 601 5437
----------------------------------------

  "If you have an apple and I have an apple and
  we exchange these apples then you and I will
  still each have one apple. But if you have an
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  ideas, then each of us will have two ideas."

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