The Beneteau First 40 2008 vs Beneteau Oceanis 390 1987 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 40 2008 measures 41,4 feet overall (2008), giving it roughly 3,2 additional feet of deck space compared to the Beneteau Oceanis 390 1987 at 38,2 feet (1987). Weight tells a clearer story for trailering families: the Beneteau First 40 2008 tips the scales at 17 417 lbs — 3 087 lbs more than the Beneteau Oceanis 390 1987 at 14 330 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 — 40 hp for the Beneteau First 40 2008 and 50 hp for the Beneteau Oceanis 390 1987. 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 Beneteau Oceanis 390 1987 carries 46 gallons versus 37 gallons in the Beneteau First 40 2008. 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 40 2008 is rated for 12 passengers, while the Beneteau Oceanis 390 1987 caps at 11. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Beneteau First 40 2008 could be the deciding factor.

Displacement is where these two sailboats genuinely part ways. The Beneteau First 40 2008 displaces 17 417 lbs — a 3 087-lb difference over the Beneteau Oceanis 390 1987 at 14 330 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 40 2008 draws 8,0 ft, compared to 5,5 ft for the Beneteau Oceanis 390 1987. That 2,5-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.

The Beneteau First 40 2008 is rigged as a fractional_rig_sloop while the Beneteau Oceanis 390 1987 carries Sloop rigging — a meaningful difference in sail handling complexity, upwind performance, and the size of crew you'll need to work the boat comfortably. For auxiliary power the Beneteau Oceanis 390 1987 carries a 50-hp engine against 40 hp on the Beneteau First 40 2008. Motoring range and ability to punch through a foul current or enter a tight marina under power will favour the more powerful installation.

Hull speed is rated at 7,9 knots for the Beneteau First 40 2008 and 7,7 knots for the Beneteau Oceanis 390 1987. For extended cruising, water capacity matters: the Beneteau Oceanis 390 1987 carries 169 gallons versus 53 gallons on the Beneteau First 40 2008 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.