ok people, the truth has come out, I've got the original skyline series II japanese catalogue right here in front of me and its says quite clearly (well its in japanese but you could work out) that the gts25t type M with active LSD (which is a seperate model by itself) and the gts-4 are the only ones with standard ABS. the rest which include the type M specII and the spec I and all the nonturbo versions have it as an option