use createVehicle ( 539,-2247.9392,-1725.0338,479.5452,40.9806, 0.0, 0.0)
spawnVehicle is used to respawn an already existing vehicle, for example:
monter = createVehicle ( 444, 0, 0, 4 )
spawnVehicle ( monster, 1000, 2000, 10 ) <- this function would spawn the monster to a different location