The Beneteau First 40 2008 vs Beneteau First 405 1985 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 — Beneteau First 40 2008 at 41,4 ft versus Beneteau First 405 1985 at 40,1 ft. Weight tells a clearer story for trailering families: the Beneteau First 405 1985 tips the scales at 18 519 lbs — 1 102 lbs less than the Beneteau First 40 2008 at 17 417 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 First 405 1985. 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. Both carry nearly identical fuel loads — 37 gal and 34 gal — so range won't be a tiebreaker here.
Both boats are rated for 12 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
Both boats sit in a similar displacement bracket — 17 417 lbs for the Beneteau First 40 2008 and 18 519 lbs for the Beneteau First 405 1985. Comparable displacement means broadly similar seakeeping behaviour and load capacity, though hull form and ballast ratio will still produce noticeably different sailing characteristics.
Both boats draw a similar depth — 8,0 ft and 7,1 ft respectively. Marina access and anchorage options should be broadly equivalent between the two.
The Beneteau First 40 2008 is rigged as a fractional_rig_sloop while the Beneteau First 405 1985 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 First 405 1985 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 8,0 knots for the Beneteau First 405 1985 and 7,9 knots for the Beneteau First 40 2008. For extended cruising, water capacity matters: the Beneteau First 405 1985 carries 106 gallons versus 53 gallons on the Beneteau First 40 2008 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.
Bottom line: The Beneteau First 40 2008 and Beneteau First 405 1985 are closely matched on paper. A sea trial on both in representative conditions is the only reliable way to find which one suits your sailing style, home port, and intended cruising ground.