Development Blog, Grand Prix 1973 Grand Prix BT42 Development: Day 12: LODs Posted on April 15, 2021 by admin 15 Apr Day 12: Car now has 5 levels of details. These LODs should save LOTs (oh!😅) of FPS. Grand Prix BT42 Development: Day 11: Skins and in-game tweaking Grand Prix BT42 Development: Green Hell Testing with Simutec