From the "for what it's worth" dept: I was in the train station at Orvieto on Nov. 29 last year, and a local mentioned that TAR racers had just been through. Not sure whether they were getting on or off the train. Then, an hour or so later, I was in Civita di Bagnoregio, and got the same report. From a distance, I thought I spotted a yellow/red clue box on the walkway up to the Civita. By the time I got to the walkway, however, it had been removed. Once I got into the Civita itself, there were a lot of people milling about and leaving, A/V equipment being broken down, and generally just more activity than the normal tourists. Again, according to a local, TAR racers had just been there, re-creating a local donkey race in the town piazza.