I know, there are around 4 different generations of the 3SGE, ST162 is GenI, SW20 and ST182 (I think) is GenII, later ST202s and SW20s had the red-top BEAMS, SXE10 Altezza had the black-top BEAMS there are 5 generations, 6 or 7 if you include the newer caldina ones, i lost track after the celica ones before the beams there was a 3rd gen 3sge, some aus mr2s have it pretty sure only japanese mr2s got the beams