When two boats share the same hull type — in this case both the Duffy 16 Back Bay 2013 and the Duffy 18 Packet II 2013 are modified vee designs with fiberglass construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
On paper these two are close siblings in the size department — Duffy 16 Back Bay 2013 at 16,4 ft versus Duffy 18 Packet II 2013 at 18,0 ft. At 21 lbs and 24 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
Both boats are rated for 8 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
Top speed is rated at 5 mph for the Duffy 16 Back Bay 2013 and 5 mph for the Duffy 18 Packet II 2013.
Bottom line: The Duffy 16 Back Bay 2013 and Duffy 18 Packet II 2013 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.