That’s brilliant information- many thanks!
There are a few reasons for changing. Partly is itchy-feet syndrome as I’ve had it for 4 years. I also don’t drive it as much as I’d like and, while it’s great on track, I deliberately don’t do as many trackdays as I used to do with previous cars just to preserve it a bit. Finally, and this sucks, there’s ULEZ. The 996 is not compatible and I live in Nottingham city centre which is pondering copying London. I know of one early Boxster owner in Bristol that’s just changed cars for exactly the same reason.
I’ll get searching and keep you updated...