Motormaster

Leader of the Stunticons, Motormaster makes sure his teammates are kept in check. Slightly arrogant he time to time questions his superiors, but his loyalty stops him from betraying them when he’s given a job to do.

Motormaster has an obsession about being the king of the roads, this obsession gets the annoyance of most people(maybe except Velocitronian), Motormaster should go to Velocitron, where he could be king of the roads.

He can combine with his teammates to form Menasor

History:

Motormaster was born during Zeta prime's time and worked as a Stunts person for the Stunticons until the Stunticons joined the Decepticons. During the war he and his team gained the ability to combine into Menasor during Operation: combination by Banzaitron while showing the enigma's power to Megatron.

During the ensuring battle against the Autobots, Menasor cornered some Autobots(and Elita team) With Bruticus, but was defeated when the enigma created Orthia out of Combining Elita-1's team together[Operation: Combination]

He tried to get with his teammates during a battle to take a Guardian era Data pod but lost its content to Grimlock. The next day or two he with his teammates were involved with an attack with an Autobot base and fled after being defeated by Computron. He later ate lunch with Mixmaster and learned about the renovations of the Nemesis.[Spotlight Grimlock]

He took part in a siege of an Autobot base where Hyperdrive was in and with his teammates formed Menasor but was defeated by Computron.[Spotlight: Hyperdrive]

Notes:

He's based on the Animated character of the same name

It remains to be seen that Wildrider, Like the rest of the Stunticons, is able to combine with them to form Menasor. It’s Unlikely as the Stunticons gained their combining ability During the great war and he and the grope parted ways before the war.