A major character introduced into the mythos in 1986 -- it's Autobot cavalier, Hot Rod. He's a somewhat divisive character, for those who grew up with the original Transformers: The Movie. There are those who blame him for Optimus Prime's death (I tend to think Megatron is the guilty party there), and refuse to accept he was Prime's hand-chosen successor. As a result, when it does surface in the fiction, Hot Rod's leadership tends to be short in comparison to Optimus' eons-spanning tenure. Hot Rod turns into a red race car with huge chromed exhaust pipes and bitchin' flame decals. This drawing is from 2017.
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.
