Since it's so hard to find this on the web, I've uploaded the original soundtrack for Spikeout: Battle Street, and I added some extra tracks that aren't in the original soundtrack, I got them from a gamerip. So there are two discs: disc 1 is the original soundtrack and disc 2 is the extra ones gotten from the gamerip.

Tracklist (disc 1) + album info
http://vgmdb.net/album/9671

Tracklist (disc 2)
2-01 Title Loop
2-02 Spiker's Camp 3
2-03 Diesel Town 3
2-04 Bad guys ~Here Comes The Area Boss~ (Alternative)
2-05 Imperial Opera 6 Finale
2-06 Gal Remix
2-07 Hedgehog
2-08 Challenge 1
2-09 Challenge 2
2-10 Challenge 10
2-11 Finale Remix
2-12 Main Menu 1
2-13 Main Menu 2
2-14 Main Menu 3

Download (MP3 256~320kbps)
https://mega.nz/#!lZpiwapD!uQY6NpEUbMzjSCpomOzQ6nkMFWSX-VrzCPIbpOSIsss

Wow I can't believe someone finally shared this soundtrack after all these years!! One of the rarest gems from Shiniji Hosoe & Ayako Saso aka Namco/Supersweep/Sampling Masters.
Thanks!

Supersweep ftw!! thanks for sharing it.

The track times from Disc 1 does not correspond to the ones on vgmdb.
Did you rip that soundtrack from your personal disc ?