Parker added the electronics cabinet to the 21DV recently. Another change would be the deck cap wrapping around transom on the 18. Parker re-designed the transom on 23DV a few years ago. Open back pilot house option is new.
"While other manufacturers are chasing new fads, Parker chooses to stay with the tried and true methods..." That's out of a current Parker brochure, could be out of a mid 80's brochure, word for word.
Sometimes no change is good. :wink: