Dirt Track Racing Series

Dirt Track Country Downunder
Australian drivers skins, setups and chassis available for download.
http://www20.brinkster.com/dtcdskins

FUO Motorsports
Contains setups, leagues, skins, add-ons, and forums for both games.
http://www.fuo-motorsports.com/

Mistreater Racing Team
Includes skins, setups, chassis, and downloads.
http://mistreater22.tripod.com/

Slingshot's Dirt Track Racing Team
Offers information, downloads, and screenshots.
http://www.angelfire.com/funky/wtfslingshot/