I've tested car on DF , so i can't agree with you. Like i've writen on the tune description , it not a great car in my opinion anyway:
Stock car same PP have 85HP more and 90kg less. It' a lot more fast on straight of course but is a
understeer monster. You have to wait to turn during long curve.... I don't like this kind of drive.
My car is just a few faster even on this track been not competitive there because of the 2 long straight.
On Suzuka or any turny track you'll have a bigger difference , because more grip and front eagerness....
Stock car due to weight reduction 1 is and the originals parts that reduce a lot the PP is:
699.97 PP // 605HP // 2544lbs or 1154kg
My car with full modifications , parts added .... ballast ... is:
699.85 PP // 520HP // 2743lbs or 1244kg
Here is 5 laps with my car , you say "could not make it 5 laps at Deep Forest sadly" . I really don't know the reason of this.
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Here is the stock setting
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