I tired from try with SetElementRotation but i dont know how script, Im noob scripting  
I use this : 
    local x,y,z = 0,0,0 -- fill in 
    addEventHandler("onElementModelChange", root, 
    function (oldModel,newModel) 
        if newModel == 425 and getElementType(source) == "vehicle" then --425 = hunter 
            local rotX, rotY, rotZ = getElementRotation(425) -- get the local client's vehicle rotation 
            setElementRotation(localVehicle,rotX,rotY+10)  
        end 
    end) 
Dont work!  
btw: sorry for bad english