The Beneteau Oceanis 45 2011 vs Beneteau Oceanis 500 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 Oceanis 500 1987 measures 50,2 feet overall (1987), giving it roughly 4,3 additional feet of deck space compared to the Beneteau Oceanis 45 2011 at 45,9 feet (2011). Weight tells a clearer story for trailering families: the Beneteau Oceanis 500 1987 tips the scales at 30 865 lbs — 7 608 lbs less than the Beneteau Oceanis 45 2011 at 23 257 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 80 hp, the Beneteau Oceanis 500 1987 has a 26-hp advantage over the Beneteau Oceanis 45 2011's 54-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 Oceanis 500 1987 carries 148 gallons versus 53 gallons in the Beneteau Oceanis 45 2011. 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 Oceanis 500 1987 is rated for 15 passengers, while the Beneteau Oceanis 45 2011 caps at 13. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Beneteau Oceanis 500 1987 could be the deciding factor.

Displacement is where these two sailboats genuinely part ways. The Beneteau Oceanis 500 1987 displaces 30 865 lbs — a 7 608-lb difference over the Beneteau Oceanis 45 2011 at 23 257 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 Oceanis 45 2011 draws 7,5 ft, compared to 5,1 ft for the Beneteau Oceanis 500 1987. That 2,4-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 Oceanis 45 2011 uses Sloop rigging. For auxiliary power the Beneteau Oceanis 500 1987 carries a 80-hp engine against 54 hp on the Beneteau Oceanis 45 2011. 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 8,9 knots for the Beneteau Oceanis 500 1987 and 8,7 knots for the Beneteau Oceanis 45 2011. For extended cruising, water capacity matters: the Beneteau Oceanis 500 1987 carries 275 gallons versus 98 gallons on the Beneteau Oceanis 45 2011 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.