it's possible that this is a spoiler, but I hope you'll join the discussion after completing the game.
The map is divided into four parts:
-37 - 0 surfaces
0 - 1470 is the first level.
Only 1 nitro is obtained.
1470 - 2890 is the second level.
5 nitro is obtained immediately.
2890 - 4980 is the third level.
10 nitro is obtained immediately.
Victory 4980 - 5000.
Nitro is not required.
The visual size of the fuel tank is 50.
The training speed without nitro is 1 m/s.
The training speed with nitro is probably 100 m/s,
only the author knows the exact numbers,
now let's create a wiki