Hm
Hey I've played Trackmania too.
The loop is out of rithme at times, and also the snare intro was a little weird if you ask me.
I hear the drums are also just a .wav ;( as so are the other stuff you keep putting in the song.
Listening to this didn't give me the feeling that I was listening to one song, but rather to two or three. Try to stick to one theme a bit more.
Good luck!