I was bored out of my mind on this race... I did it primarily in two sitting in the formula gt with hard racing tires. Most laps were ~40, lowest ~39.4, took a total of roughly 2 hours twenty minutes (sorry didn't keep details)...
I was so bored I would do silly things like weaving back and forth, or trying to ride those inside corners off the track at full speed.
I also stopped paying attention (road hypnosis at ~220mph?) and ran out of gas... luckily it was as I was rolling into the pit when it happened, so no harm done.