The VC Commodore was a minor refinement of the VB Commodore and included several engineering updates but few body changes. It's identifiable by the "egg crate" grill. This Holden "blue" 6 cylinder motor was introduced to meet more strict emissions requirements using 12-port heads and electronic ignition for the first time.
The base model was labelled the Commodore L when it was effectively unnamed in the previous model. Interestingly, the VB Commodore was available if 4, 6 and 8 cylinder versions like the Holden Torana of the seventies.