This was a really fun soundtrack to listen to from start to finish. I love the racing theme you are going for combined with the breakcore sound. The synths you used were ear candy, and the melodies and riffs were quite catchy. I particularly enjoyed that silly sounding synth and walking bass line in the last track.
If there were any changes/fixes I would suggest, I would of liked to hear the various synth melodies more clearly. I feel like sometimes during songs, they were meshed in with the other instrumentation and could of shone brighter in the mix. I would also ease up on the compression in more intense parts, but I understand that's generally part of breakcore music.
A cool collection of soundbites for sure!