Circuit Saint Pierre is fictional race track in France. You can race on 3 configurations - Full layout, Club layout and Club Chicane layout. Track is tested in realistic racing simulator to insure it has correct scale, and is fun to drive. Watch onboard laps in Assetto Corsa here:

https://www.youtube.com/watch?v=njyoiVlyZPU&t=14s

Main layout distance is 5km.