The Beneteau Antares 12 2020 vs Beneteau First 456 1982 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 First 456 1982 measures 46,7 feet overall (1982), giving it roughly 4,0 additional feet of deck space compared to the Beneteau Antares 12 2020 at 42,7 feet (2020). Weight tells a clearer story for trailering families: the Beneteau First 456 1982 tips the scales at 26 455 lbs — 6 374 lbs less than the Beneteau Antares 12 2020 at 20 081 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 900 hp, the Beneteau Antares 12 2020 has a 820-hp advantage over the Beneteau First 456 1982's 80-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 First 456 1982 carries 53 gallons versus 31 gallons in the Beneteau Antares 12 2020. 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 First 456 1982 is rated for 14 passengers, while the Beneteau Antares 12 2020 caps at 13. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Beneteau First 456 1982 could be the deciding factor.

Displacement is where these two sailboats genuinely part ways. The Beneteau First 456 1982 displaces 26 455 lbs — a 6 374-lb difference over the Beneteau Antares 12 2020 at 20 081 lbs. That gap separates two entirely different categories of sailing: the heavier boat is built for offshore passage-making and load-carrying, while the lighter hull rewards performance sailing and easier handling in lighter air.

Draft is a practical consideration that many buyers underestimate until they're already at the marina. The Beneteau First 456 1982 draws 7,1 ft, compared to 3,1 ft for the Beneteau Antares 12 2020. That 4,0-foot difference affects which anchorages you can access, which haul-out facilities will take you, and how carefully you need to read the tide tables in shallower cruising grounds.

For auxiliary power the Beneteau Antares 12 2020 carries a 900-hp engine against 80 hp on the Beneteau First 456 1982. Motoring range and ability to punch through a foul current or enter a tight marina under power will favour the more powerful installation.

For extended cruising, water capacity matters: the Beneteau Antares 12 2020 carries 169 gallons versus 106 gallons on the Beneteau First 456 1982 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.