Avis sur le Oneiro

The Oceanis 400 is a 40-foot Beneteau cruiser from the early 1990s with a fin keel, spade rudder, and masthead sloop rig, a layout that generally favors predictable cruising manners over pure speed. Public specs place the boat at about 40 ft LOA, 12.8 ft beam, and around 5.4–5.7 ft draft depending on version, which supports a reasonably roomy hull without making it overly deep or difficult to berth.[1][8][10][15]

On the water, the design suggests solid everyday cruising performance with balanced handling and decent upwind capability, but it is not a modern performance cruiser. The published sail area and displacement figures point to an efficient but conservative sail plan, and the standard 44 hp diesel is adequate rather than powerful for a boat of this size.[1][8][10]

Comfort and livability are typical strengths of this generation of Beneteau cruisers, with a broad beam and about 140 gallons of water capacity in the general model specs, which helps for longer stays aboard.[1][8][10] For the specific Oneiro listing, however, cabin count, berths, and bathrooms were not verified in the available results, so interior capacity should be treated as unconfirmed.

As a value proposition, the Oceanis 400 remains appealing because it is a widely documented, proven cruising platform with accessible maintenance expectations and a large second-hand market. The main caveat is that real-world value depends heavily on the condition of the particular boat, especially given its age and the uncertainty around the exact Oneiro configuration.[1][11][15]