Maybe anyone can explain to me, or give me a link to understand how to use and modify the AI parameters that are in the .hdv files? That's because I would like to improve AI in a mod (for offline races). The are the parameters in .hdv files. The problem is the AI often go out of the track in corners; above all I think I need to understand the three numbers in AITorqueStab and the AISlipReaction ... AIAimSpeedsPerWP=(25,35,45,55,70,90,110,140) AISlipReaction=(100,0.05) AIPerfUsage=(0.90,0.80,0.80) AITableParams=(-1,-1) AICornerReductionBase=30.0 AIMinPassesPerTick=6 // minimum passes per tick (can use more accurate AIRotationThreshold=0.15 // rotation threshold (rads/sec) to temporarily increment passes per tick AIEvenSuspension=1.0 // averages out spring and damper rates to improve stability AISpringRate=4.0 // spring rate adjustment for AI physics AIDamperSlow=1.0 // contribution of average slow damper into simple AI damper AIDamperFast=1.0 // contribution of average fast damper into simple AI damper AIDownforceZArm=0.15 // hard-coded center-of-pressure offset from vehicle CG AIDownforceBias=1.5 // bias between setup and hard-coded value (0.0-1.0) AITorqueStab=(1.5, 1.5, 1.5) // torque adjustment to keep AI stable Thank you for your help