Sorry for the late reply, I'm lousy with keeping up to date on forums...
Cycles accelerate a bit when they drive close to walls, and lose a bit of speed on every turn. And the bots do love to drive close to walls, so they benefit from that. Also, in Gauntlet mode, different enemies have different base speeds and are faster at higher difficulties; all but the grey ones should be as fast as you at normal difficulty and faster at the higher difficulties. If my head math is right :)
New share code: 5PY23MND51
I had to unshare the old code, somehow I ended up with two share entries and no means to check which of the two would be the right one with the update... weird.
Update: for this one, labeled v1.1: You can now abort games without quitting the game entirely, all active players need to hold down all available L and R keys for a second (so in single player mode, just hold both L and R).
Edit: Huh, claiming the game on the catalogue must have reset its share status from "public" to "submitted/pending". Patience, please.
Edit2: It's public again, catalog link.