The Comitti Venezia 31 2018 vs Comitti Venezia 34 2017 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.
On paper these two are close siblings in the size department — Comitti Venezia 31 2018 at 32,6 ft versus Comitti Venezia 34 2017 at 34,6 ft. Weight tells a clearer story for trailering families: the Comitti Venezia 34 2017 tips the scales at 9 921 lbs — 1 544 lbs less than the Comitti Venezia 31 2018 at 8 377 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
Both boats share a closely matched power ceiling — 220 hp for the Comitti Venezia 31 2018 and 220 hp for the Comitti Venezia 34 2017. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Fuel capacity breaks the other way: the Comitti Venezia 34 2017 carries 132 gallons versus 119 gallons in the Comitti Venezia 31 2018. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Comitti Venezia 34 2017 is rated for 10 passengers, while the Comitti Venezia 31 2018 caps at 9. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Comitti Venezia 34 2017 could be the deciding factor.
Bottom line: Choose the Comitti Venezia 34 2017 if your priority is putting more people on the water — it handles 10 passengers and at 34,6 ft it has the deck room to back that rating up comfortably. The Comitti Venezia 31 2018 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 9 that costs less to run day-to-day.