Handling

[ZeyadGTX]

I use this Script But I change the Handling and car Velocity and the handling doesn't change and the handling sucks

function handlingChange() 
    setModelHandling(602, "mass", 1890) 
    setModelHandling(602, "turnMass", 3780) 
    setModelHandling(602, "dragCoeff", 0.7) 
    setModelHandling(602, "centerOfMass", {0.0, 0.1, -0.2} ) 
    setModelHandling(602, "percentSubmerged", 75) 
    setModelHandling(602, "tractionMultiplier", 0.70) 
    setModelHandling(602, "tractionLoss", 0.90) 
    setModelHandling(602, "tractionBias", 0.50) 
    setModelHandling(602, "numberOfGears", 5) 
    setModelHandling(602, "maxVelocity", 320) 
    setModelHandling(602, "engineAcceleration", 15) 
    setModelHandling(602, "engineInertia", 10) 
    setModelHandling(602, "driveType", "awd") 
    setModelHandling(602, "engineType", "petrol") 
    setModelHandling(602, "brakeDeceleration", 11) 
    setModelHandling(602, "brakeBias", 0.45) 
    setModelHandling(602, "ABS", true) 
    setModelHandling(602, "steeringLock", 30) 
    setModelHandling(602, "suspensionForceLevel", 0.80) 
    setModelHandling(602, "suspensionDamping", 0.20) 
    setModelHandling(602, "suspensionHighSpeedDamping", 0.0) 
    setModelHandling(602, "suspensionUpperLimit", 0.10) 
    setModelHandling(602, "suspensionLowerLimit", -0.09) 
    setModelHandling(602, "suspensionFrontRearBias", 0.5) 
    setModelHandling(602, "suspensionAntiDiveMultiplier", 0.6) 
    setModelHandling(602, "seatOffsetDistance", 0.3) 
    setModelHandling(602, "collisionDamageMultiplier", 0.50) 
    setModelHandling(602, "monetary", 1460000) 
    setModelHandling(602, "modelFlags", 0xC0222004) 
    setModelHandling(602, "handlingFlags", 0x1400000) 
    setModelHandling(602, "headLight", 1) 
    setModelHandling(602, "tailLight", 1) 
    setModelHandling(602, "animGroup", 0) 
end 
addEventHandler("onResourceStart", resourceRoot, handlingChange) 

[xXMADEXx]

If the script is being loaded, then the handling is changing, but it probably isn't enough to notice...

[ZeyadGTX]

The handling Sucks , and i changed it but still same don't change