Training a neural-network to race

Ok so now it does start at the right position, and it does pass through all 4 checkpoints as you can see, but let’s just say that there is room for improvement…

I think I finally managed to make it “work” as it “technically” functions, simply with extremely poor performances. This may be a bit harder than I expected…
Lots of problems I don’t understand like where are the script’s tanks even spawning in the first place and how do they manage to get off the track even though there should be a physical border that makes them bounce back on the track.