[PC] Maibatsu Motors GP

Checkpoint placement is good.

Two things come to my mind: why the repair kits in random locations? And second, I don't know if it is intended as a feature, but I think you overdid the lamp post coverage with tyre stacks a lot. If it is cosmetic, its ok, but apart from that, you can save a lot of props because a lot of them are covering lamp posts that are very unlikely to be knocked down.

I know you want to give protection by blocking these off, I did that too in my early creator days. But as an advanced creator I can warmly recommend you to remove some that are not close to the ideal racing line. For example on the straights. My rough estimation is that you could get 20 or so props back.

Another advice is for the turn at CP 30 and 31. Tyre walls are great props for artificial track parts. But there's one issue with them: if you even slightly touch them, they catch onto your car and most probably give you a full stop. You can use them for the outside of the turn, but people will obviously drive as close to the inside / apex as possible. So there you should use parts that are not that sticky. Examples are the concrete barriers (white, red-white striped), wooden boardings (come in several shapes) from the construction category and the all new blocks from the stunt update.

Same problem with the new billboards: their base consists of tyre stacks which are pretty sticky. Use them with caution.
Edit: Protip: Use the coordinate manipulation tool to move the billboards into the ground (global z-coordinate) until the tyre base is gone. The billboards themselves are perfectly smooth and also add to the racing flair.

However, these are pretty high-level recommendations. The track looks good so far.