The Vapid Ganado is Jason's beat-up pickup. In the Ultimate Edition you get a retro rebuild with extra muscle and classic styling for that same truck.
The Ultimate text calls it Jason's 'well-worn Vapid Ganado low-riding pickup' and promises exclusive mods that 'inject some muscle and classic stylings.' The Ganado Retro Build is a mod kit for the truck Jason already owns, not a separate vehicle. Vapid is the series' long-running American car brand.