During weekend I finally found a time to finish one of tracks I'm working on, so here it is:
Autodromo di Putignano, Bari, Italy.
Coordinates: 40,846800°N 17,138476°E
Long circuit: 2,340 km (1,454 mi)
Short circuit: 1,220 km (0,758 mi)
Abandoned in the end of 1969 while under construction (70% of the track and 30% of facilities completed), never opened for racing.
I found this track rather by accident on gdecarli.it site, no more details are available next to the loose map there and aerial pics of the site, so I have no clue, how the track would look like, if finished. But because the layout seems to be pretty crazy I gave a try. Let's say what if it'd be first finished, then soon after abandoned, coincidently untouched over years and then reopened for vintage events (like the Goodwood Circuit in UK)? Have fun. And a warning: be gentle to your left key/button, you're going to really need it here.