I've always been a fan of little Robots In Disguise Skid-Z, even with the lame Hasbroey name to keep it like Skids.
He's a repaint of Machine Wars Mirage that Takara redid and included in Car Robots as Indy Heat. He even made it into the Car Robots anime with a whole episode devoted to him.
He's got a bit of gimmick to him with a spring-loaded transformation that I've always found awkward at best.
But as a bot, except for the gimpy feet, he's pretty decent and always has a home on the Car Robots and RID shelves.
One day I'll get around to opening up some other repaints I have of the mold, namely the Jusco Exclusive Translucent Car Robots Indy Heat and maybe the really nice Robot Masters Ligier repaint that really is a good G1 Mirage homage.