This is a Subaru test course スバル美深試験場 (Subaru Research and Experiment Center Bifuka Proving Ground) in Niupu, Bifuka-cho, Nakagawa-gun, Hokkaido. The Bifuka Proving Ground was opened in 1995. Until the test site was opened in 1995, we had repeated driving tests on ordinary roads in this area. Established in 1995 as a research and development base for winter snow tests, we have been conducting research and development mainly to build cars that can be driven safely even in cold regions.

In addition to various test roads and handling roads in the total site area of ​​361 hectares, a high-speed circuit was added in 2003, and various tests are conducted throughout the year as a test course that looks like an actual public road.

High-speed circuit - total length 4.2km. Can be extended in future updates.

Really interesting high speed road with old chool racing turns. The track is fun for road cars and classic retro race cars. Modern GT3 is not best choise for here, my oppinion.
Release version Support race (not weekend) with 27 Ai and good replay cam.

Mountaing toge course is 2.0 km. Short, but very very tricky road.
Probably this test course is usnig for suspension tests or even for mud running. But i saw it has potential to be high-level toge circuit with up and down hill combined. No rail guards, so should be carefull here =)
Release version Support race (not weekend) with 1 Ai and good replay cam.

Sprint track is 1.17 km short route connecting Office area and Montain route with High-speed ring.
Just for fun. Nothing more. Release version Support race (not weekend) with 1 Ai. No replay cam.

More on https://www.patreon.com/gtsupreme - new mods and tracks

version 1.1 updates:
- added extra layout with bumpy section
- pits on high speed layouts are fully working with Ai now - 27 pit boxes
- few more cams for big circuit and mountain circuit by "racealot"
- some shaders fix

Have fun!