Well, I've been testing this KERS myself the last 50 mins. Private online-lobby, Tire/Fuel wear on & 'grip' set to 'real'
Drags at Indy; 5 'passes' each
w/o button pressed - trap speed = ~136mph
w/ button pressed - trap speed = ~136mph
- Both runs average at about a 10-sec 1/4 mile. However despite these numbers, I swear I felt 'stronger' acceleration through 2nd gear w/ KERS-button used vs 'not used' 2nd gear. But... butt-dyno can be subjective - and w/o more reliable tests (Route X tests in GT5 for example) - I have to say there is a placebo effect or glitch/bug going on. (Maybe it only works if you don't repaint veh, for example, this is PD's game afterall)
Feel free to post proof of laptimes or data logging that say I'm wrong, however, at this point, since the game itself doesn't outline how to use the cars 'KERS' function, or that it actually has "KERS" (I see no mention of the word or system in the "Car Info" page, just 'use' of electric motors for torque-vectoring and such.) - I can't say its 'all its cracked-up to be'.