My first racetrack, named after Seneca Racing Team from Grid series

Mods used for extra content in making this:
ChinJufuMod + Japanese Blocks
Macaw's Doors
Mapper Base
Saro's Construction
Saro's Road Signs
Traffic Control + Roads by Teerth
Road Stuff by Mapper

Tested multiple times with vehicles from CraftSpeed mod

You can use that track on your worlds (with proper credit to author)

Update 1: I added separate world file for those who doesn't use WorldEdit and doesn't use ChinJufuMod