The international-only release of the Turbomasters concludes with Thunder Clash, the Autobot Turbomaster commander. In the traditional of Optimus Prime, he turns into a cab-over-engine semi truck with a trailer that turns into a battle station. Released in Europe, Canada and Australia in 1992, Thunder Clash's design would later be redeco'ed as Optimus Prime in the 1997 KB stores exclusives Machine Wars line.
An Online Amateur Sketchpad