A Big Fat Road Vehicle Set
Road Hog is available from the content service in OpenTTD, as a zip for manual installation, or as a source checkout for compiling locally (requires mercurial and various python dependencies).
A few things to know before setting up a Road Hog game...
UNFINISHED - PARAMETERS ETCFind out more about Road Hog. Or try it out in OpenTTD!
List of Road Vehicles Code ReferenceRoad Hog is updated and improved quite often.
The Road Hog changelog keeps track of changes, including new features, bug fixes and updates to translations.