When two boats share the same hull type — in this case both the Donzi 38 ZFX Open 2013 and the Donzi 38 ZSF 2009 are deep 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 — Donzi 38 ZFX Open 2013 at 38,5 ft versus Donzi 38 ZSF 2009 at 38,5 ft. At 102 lbs and 15 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.

The power gap is worth calling out. Rated to 1 050 hp, the Donzi 38 ZFX Open 2013 has a 150-hp advantage over the Donzi 38 ZSF 2009's 900-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Donzi 38 ZFX Open 2013 carries 318 gallons versus 42 gallons in the Donzi 38 ZSF 2009. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 11 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.