Open OpenIV and go to the address:Grand Theft Auto V\update\x64\dlcpacks\mpapartment\dlc.rpf\common\data\handling.meta , 
Find "limo2" settings and replace these:

<Item type="CHandlingData">
      <handlingName>LIMO2</handlingName>
      <fMass value="5600.000000" />
      <fInitialDragCoeff value="13.000000" />
      <fPercentSubmerged value="85.000000" />
      <vecCentreOfMassOffset x="0.000000" y="0.000000" z="-0.1" />
      <vecInertiaMultiplier x="1.000000" y="1.000000" z="1.200000" />
      <fDriveBiasFront value="0.040000" />
      <nInitialDriveGears value="4" />
      <fInitialDriveForce value="0.24000" />
      <fDriveInertia value="0.900000" />
      <fClutchChangeRateScaleUpShift value="1.500000" />
      <fClutchChangeRateScaleDownShift value="1.500000" />
      <fInitialDriveMaxFlatVel value="130.000000" />
      <fBrakeForce value="0.600000" />
      <fBrakeBiasFront value="0.650000" />
      <fHandBrakeForce value="0.450000" />
      <fSteeringLock value="34.000000" />
      <fTractionCurveMax value="2.000000" />
      <fTractionCurveMin value="1.700000" />
      <fTractionCurveLateral value="18.000000" />
      <fTractionSpringDeltaMax value="0.130000" />
      <fLowSpeedTractionLossMult value="0.850000" />
      <fCamberStiffnesss value="0.000000" />
      <fTractionBiasFront value="0.500000" />
      <fTractionLossMult value="0.000000" />
      <fSuspensionForce value="1.400000" />
      <fSuspensionCompDamp value="0.900000" />
      <fSuspensionReboundDamp value="1.400000" />
      <fSuspensionUpperLimit value="0.300000" />
      <fSuspensionLowerLimit value="-0.180000" />
      <fSuspensionRaise value="0.000000" />
      <fSuspensionBiasFront value="0.500000" />
      <fAntiRollBarForce value="0.500000" />
      <fAntiRollBarBiasFront value="0.600000" />
      <fRollCentreHeightFront value="0.450000" />
      <fRollCentreHeightRear value="0.430000" />
      <fCollisionDamageMult value="0.100000" />
      <fWeaponDamageMult value="0.100000" />
      <fDeformationDamageMult value="0.150000" />
      <fEngineDamageMult value="0.200000" />
      <fPetrolTankVolume value="80.000000" />
      <fOilVolume value="8.000000" />
      <fSeatOffsetDistX value="0.000000" />
      <fSeatOffsetDistY value="0.000000" />
      <fSeatOffsetDistZ value="0.000000" />
      <nMonetaryValue value="50000" />
      <strModelFlags>400010</strModelFlags>
      <strHandlingFlags>0</strHandlingFlags>
      <strDamageFlags>0</strDamageFlags>
      <AIHandling>AVERAGE</AIHandling>
      <SubHandlingData>
		<Item type="CVehicleWeaponHandlingData">
          <uWeaponHash>
            <Item>VEHICLE_WEAPON_TURRET_LIMO</Item>
            <Item />
            <Item />
          </uWeaponHash>
          <WeaponSeats content="int_array">
            4 
            0 
            0 
          </WeaponSeats>
          <fTurretSpeed content="float_array">
            10.000000	
            0.000000	
          </fTurretSpeed>
          <fTurretPitchMin content="float_array">
            -1.000000
            0.000000	
          </fTurretPitchMin>
          <fTurretPitchMax content="float_array">
            0.707000	
            0.000000	
          </fTurretPitchMax>
          <fTurretCamPitchMin content="float_array">
            -0.500000	
            0.000000	
          </fTurretCamPitchMin>
          <fTurretCamPitchMax content="float_array">
            0.000000	
            0.000000	
          </fTurretCamPitchMax>
          <fBulletVelocityForGravity content="float_array">
            0.000000	
            0.000000	
          </fBulletVelocityForGravity>
          <fTurretPitchForwardMin content="float_array">
           -1.000000	
            0.000000	
          </fTurretPitchForwardMin>
          <fUvAnimationMult value="0.000000" />
          <fMiscGadgetVar value="0.000000" />
          <fWheelImpactOffset value="0.000000" />
        </Item>
        <Item type="NULL" />
        <Item type="NULL" />
      </SubHandlingData>
    </Item>