function damageCarsDestroyParts()
local partnum = math.random(1,5)
 if partnum == 1 then
  part = "Engine"
 elseif partnum == 2 then
  part = "Tire"
 elseif partnum == 3 then
  part = "Tank Parts"
 end

 if 1 == math.random(1,5) then
  local col = getElementData(source,"parent")
  if getElementData(col,part.."_inVehicle") > 0 then
   setElementData(col,part.."_inVehicle",getElementData(col,part.."_inVehicle")-1)
   setVehicleEngineState ( source, false )
   outputChatBox("Ravaged Parts: "..part)
  end
 end
end
addEventHandler("onClientVehicleDamage", getRootElement(), damageCarsDestroyParts)