Analysis of a performance diagram...

Hello,

Can someone take a look?



Below, under 'Performance Charts,' you can view various 'images.' What exactly do you see there? A comparison of the power box and the stock configuration? Then the serial diesel engines would have had quite a bit of 'power' under the hood... http://www.tuningbox.com/DE/p4frframede.html
The 'smaller' torque curve of the 110-horsepower TDI engine already shows over 250 Nm.
Why is P.tol. - which I assume refers to tolerance - given as -16.7%? How can this value become negative?

Perhaps someone could translate this for me into German.

Thank you very much.

Adrian.