Rhinox's Transmetal toy from 1998 also got the Fox Kids' branding treatment, and redecoed in a bright blue, red and gold finish. He still turns into a mechanical rhino, and has an interim treaded "vehicular" rhino mode. He's from 2000.
The combined form of the Universe Micromaster Aerialbots is Superion, an amalgamation of six robots plus their pack-in accessories that serve as connectors, head, and extremities of the gestalt warrior. While in Japan, the original source of the design ( Sixwing , 1992) was available in a collected set, this combiner needed to be purchased one bot at a time in the 2007 Universe release.