Utilities

GP3 - Trackediting Information Center
Offers track editing tips for players of GP 2 and 3.
http://www.waa63.ch/racesim/TEIC/index.html

GP3 Track Editor
IsoHannula GP3 track editor download. [303 kb]
http://www.geocities.com/isohannula/gp3.html

GPxSite
Allows you to hold a Grandprix league on your PHP-Nuke driven website and uses HOFxLap to validate the uploaded files against a defined set of rules.
http://oss.basjes.nl/GPxSite/