Virtual Toy Chest's
Playmates released Radically Engineered Vehicles, or R.E.V.S. for short, in 2006. They are kind of like a cross between Parasites and Transformers. Like Parasites they are robots that merge with cars. However, they are much larger, and are more on the scale of the medium sized transformers. The story follows the heroic MavWrecks quest to save the world from the evil Syndicate.