Hi again , yes mine is an original JDM spec, no probs with suspension and I live down some of the bumpiest Derbyshire roads imaginable but if you want comfort buy a Jag
as for cooling issues never had any probs whatsoever, never likely to either as if it was designed for standing in Japan,s traffic a good blast in England,s never going to overheat it , by the way never heard of any JDM owner having any issues at all really, other than radio and speed limit (easily sortable though )