dam fine cars...i had a sport when they were still sellling them on the bmw forecourts...loved every bit of it...
if you go down the ave of having the suspension done (hartge / ac schnitzer) def worth it as it will trasnform ya car..especially the hartge , but they dont come cheap.
just make sure that it is a sport and not a 325 with a kit ..as the gearbox is different.