Weird reason behind this, genuine one though...
I actually have a really bad memory, if something doesn't interest me a lot, like something I hear, no matter relevant to me or uncomplicated it is, I just completely forget it.
i.e I owned clio's for a long time (was very interested in them) and basically had an awesome/semi photographic memory of a lot of it, however the mrs could tell me we're going out somewhere thursday and if I'm not too bothered about going there I literally won't turn up unless reminded on the day.
This place, where ever/whatever it is, has evidently never been of any importance to me so it's long gone.
Edit: Now I've just read up on it, can't say it really interests me so that explains it. As much as I like motorsport, I'm not bothered by every bend name etc.