Stock is a generic term referring to everything included by default in Re-Volt. This include all cars, tracks, models, textures, and everything else that was originaly included in any version of the game.
This term was created by the community shortly after its begining and the game release. The term's true origin and meaning is uncertain. The guess is that it was made referring to the original content of the game as resources for fan-made creations, almost the same of store, supply or inventory.
- WolfR4 page at Jigebren's website: 'Some naming conventions...' section. The same or similar description can also be found in some other websites.
- Meaning of the word 'stock' at the Wikitionary.