It only has no speed limit because by the time you speed up you gotta brake before u hit the sea

Well how about gettin some suggested routes sorted out, then sticking up a poll to see which one people prefer?
I'd suggest a variety of them based in the UK.. eg:
Edinburgh -> newcastle/sunderland -> middlesburgh -> Leeds -> Nottingham -> Donnington race track
Although that may be a pain for most people to get to the start!. So i guess it'd be best of starting in the midlands? But then you got the difficult question of finding a decent ending point... Possibly a slightly more scenic route heading starting in the midlands, heading up north via west coast to the lake district, stop the night in the lake district (Plenty of photo ops for nice cars n nice scenery!) then back down south via the east coast to the leicster to donnington race track (Or another decent track with track days!)
Another possible idea would be to start it off up north somewhere, working our way down to bugjam!.