requested (most recently) by @abg7 and partially fulfilled by @stm316 in this post. Here are the last two suggestions from abg7, the East and West Circuits. Both have flying and single lap versions.
The entire park layout with all four circuits, East, West, GT, and International.
The East Circuit, measuring 3.93 km:
TheBend-EastCircuit (single).zip (1.7 MB)
TheBend-EastCircuit (flying).zip (1.7 MB)
And the West Circuit, measuring 3.41 km:
TheBend-WestCircuit (single).zip (1.7 MB)
TheBend-WestCircuit (flying).zip (1.7 MB)