The Beneteau First 310 1990 vs Beneteau Idylle 8.80 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.

On paper these two are close siblings in the size department — Beneteau First 310 1990 at 31,1 ft versus Beneteau Idylle 8.80 1982 at 28,1 ft. Weight tells a clearer story for trailering families: the Beneteau First 310 1990 tips the scales at 8 157 lbs — 772 lbs more than the Beneteau Idylle 8.80 1982 at 7 385 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 — 18 hp for the Beneteau First 310 1990 and 30 hp for the Beneteau Idylle 8.80 1982. 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 Idylle 8.80 1982 carries 21 gallons versus 17 gallons in the Beneteau First 310 1990. 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 310 1990 is rated for 9 passengers, while the Beneteau Idylle 8.80 1982 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Beneteau First 310 1990 could be the deciding factor.

Both boats sit in a similar displacement bracket — 8 157 lbs for the Beneteau First 310 1990 and 7 385 lbs for the Beneteau Idylle 8.80 1982. Comparable displacement means broadly similar seakeeping behaviour and load capacity, though hull form and ballast ratio will still produce noticeably different sailing characteristics.

Draft is a practical consideration that many buyers underestimate until they're already at the marina. The Beneteau First 310 1990 draws 6,0 ft, compared to 4,1 ft for the Beneteau Idylle 8.80 1982. That 1,9-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 310 1990 uses Sloop rigging. For auxiliary power the Beneteau Idylle 8.80 1982 carries a 30-hp engine against 18 hp on the Beneteau First 310 1990. 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 7,2 knots for the Beneteau First 310 1990 and 6,6 knots for the Beneteau Idylle 8.80 1982. For extended cruising, water capacity matters: the Beneteau First 310 1990 carries 45 gallons versus 26 gallons on the Beneteau Idylle 8.80 1982 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.