However, for certain types of non-road mobile machinery, two versions are produced in the same production line, with the power source (either on-board or external) being the only difference.
I gcás cineálacha áirithe innealra shoghluaiste neamhbhóthair, áfach, déantar dhá leagan a tháirgeadh ar an aon líne tháirgíochta amháin, arb í an fhoinse cumhachta (ar bord nó seachtrach) an t-aon difríocht eatarthu.