Dirt Track Racing Series

BST Designs
Offers cars, skins and tracks for download for Dirt Track Racing.
http://www.simcyberworld.com/bst/

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/

GFN Racing League
An online racing league. Offer news, infos and a forum.
http://www.freewebs.com/gfnphiles/

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/