Chuck's Reviews Transformers Studio Series 86 Core Class Ratchet and Wheelie
 

Core Class Ratchet and Wheelie are fun additions to the Transformers Studio Series 86 line. Ratchet's transformation is involved but intuitive, the resulting ambulance mode has a silhouette that is broken up by a couple of hinges. Wheelie is a treasure and a vast improvement over the figurine that came with Leader Grimlock. Transformation is fun although the exposed hands might be a distraction to some. If you can only buy one or want to know who to buy first, Wheelie fits into the line perfectly at this scale.

http://www.youtube.com/watch?v=Yh5ySRDkxtA