New car models to replace any of the existing cars in the game

Truck, lorry, semi and trailer models to replace any of the existing haulage vehicles

Any bicycles, motorbikes, scooters or mopeds that are designed to replace the existing two-wheelers

New aircraft models, including helicopters and aeroplanes

New seacraft models, including ships, speedboats, fishing boats, jetskis, etc

New train models to change the ridable train from GTAIII or GTAIV, or the drivable train from San Andreas

New textures/skins for existing GTA models, or for new models by other authors

Statistical data changes for vehicles, such as handling, colours and spawn areas

Models for vehicles that don't fit into any of the existing categories