There is a "homebrew" outrun arcade game, but its ripped from shenmue 2 files, ugly looking ferrari-like car, and audio tracks are in .WAV format.
Found that 2005 outrunX exist, but cant find to download, question is this a proper port, or just the same version from shenmue 2?
Cannonball source port for arcade version does exist, but not yet compiled for xbox. I guess source port needs to be rewritten for xbox compiler to work, watched MVG video about compiling xbox games, SAD.
There are loads of source ports that would be happy to run on xbox. Some of them actually reached xbox, like openlara.