The Beneteau 31 2007 vs Beneteau Swift Trawler 34S 2012 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.
Size is the most obvious dividing line here. The Beneteau Swift Trawler 34S 2012 measures 36,6 feet overall (2012), giving it roughly 4,8 additional feet of deck space compared to the Beneteau 31 2007 at 31,8 feet (2007). Weight tells a clearer story for trailering families: the Beneteau 31 2007 tips the scales at 10 692 lbs — 9 089 lbs more than the Beneteau Swift Trawler 34S 2012 at 1 603 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.
The power gap is worth calling out. Rated to 425 hp, the Beneteau Swift Trawler 34S 2012 has a 404-hp advantage over the Beneteau 31 2007's 21-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Beneteau Swift Trawler 34S 2012 carries 211 gallons versus 34 gallons in the Beneteau 31 2007. 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 Beneteau Swift Trawler 34S 2012 is rated for 11 passengers, while the Beneteau 31 2007 caps at 9. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Beneteau Swift Trawler 34S 2012 could be the deciding factor.
The Beneteau 31 2007 has a documented displacement of 10 692 lbs. Displacement data wasn't available for the other boat in this comparison.
The Beneteau 31 2007 uses Sloop rigging. The Beneteau 31 2007 has a documented auxiliary engine of 21 hp.
For extended cruising, water capacity matters: the Beneteau Swift Trawler 34S 2012 carries 85 gallons versus 34 gallons on the Beneteau 31 2007 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.
Bottom line: The Beneteau Swift Trawler 34S 2012 at 36,6 ft offers more living space, greater range, and a more substantial offshore capability. The Beneteau 31 2007 at 31,8 ft is the easier, lower-cost option — simpler to crew and a strong choice for coastal and day sailing.