fonksiyonu ile istediğin araca ya da bütün araçlara hand ayarı yapabilirsin.
function vhandling ( )
   for _,v in pairs(getElementsByType("vehicle")) do
      if getElementModel(v) == 411 then -------------- Hand ayarı yapacagın aracın id'si
        setVehicleHandling (v, "mass", 300.0)
        setVehicleHandling(v, "turnMass", 200)
        setVehicleHandling(v, "dragCoeff", 4.0 )
        setVehicleHandling(v, "centerOfMass", { 0.0,0.08,-0.09 } )
        setVehicleHandling(v, "percentSubmerged", 103)
        setVehicleHandling(v, "tractionMultiplier", 1.8)
        setVehicleHandling(v, "tractionLoss", 1.0)
        setVehicleHandling(v, "tractionBias", 0.48)
        setVehicleHandling(v, "numberOfGears", 5)
        setVehicleHandling(v, "maxVelocity", 300.0)
        setVehicleHandling(v, "engineAcceleration", 90.0 )
        setVehicleHandling(v, "engineInertia", 5.0)
        setVehicleHandling(v, "driveType", "rwd")
        setVehicleHandling(v, "engineType", "petrol")
        setVehicleHandling(v, "brakeDeceleration", 20.0)
        setVehicleHandling(v, "brakeBias", 0.60)
        -----abs----
        setVehicleHandling(v, "steeringLock",  35.0 )
        setVehicleHandling(v, "suspensionForceLevel", 0.85)
        setVehicleHandling(v, "suspensionDamping", 0.15 )
        setVehicleHandling(v, "suspensionHighSpeedDamping", 0.0)
        setVehicleHandling(v, "suspensionUpperLimit", 0.15 )
        setVehicleHandling(v, "suspensionLowerLimit", -0.16)
        setVehicleHandling(v, "suspensionFrontRearBias", 0.5 )
        setVehicleHandling(v, "suspensionAntiDiveMultiplier", 0.0)
        setVehicleHandling(v, "seatOffsetDistance", 0.0)
        setVehicleHandling(v, "collisionDamageMultiplier", 0.00)
        --setVehicleHandling(v, "monetary",  10000) This one is disabled for now
        setVehicleHandling(v, "modelFlags", 1002000)
        setVehicleHandling(v, "handlingFlags", 1000002)
        --setVehicleHandling(v, "headLight", 3) This one is disabled for now
        --setVehicleHandling(v, "tailLight", 2) This one is disabled for now
        --setVehicleHandling(v, "animGroup", 4) This one is disabled for now
      end
   end
end
addEventHandler ( "onPlayerVehicleEnter", getRootElement(), vhandling )