The Dufour Yachts 470 2021 vs Dufour Yachts Lacoste 42 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.

Size is the most obvious dividing line here. The Dufour Yachts 470 2021 measures 48,7 feet overall (2021), giving it roughly 6,5 additional feet of deck space compared to the Dufour Yachts Lacoste 42 1985 at 42,2 feet (1985). Weight tells a clearer story for trailering families: the Dufour Yachts 470 2021 tips the scales at 29 101 lbs — 12 566 lbs more than the Dufour Yachts Lacoste 42 1985 at 16 535 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 — 60 hp for the Dufour Yachts 470 2021 and 43 hp for the Dufour Yachts Lacoste 42 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. Fuel capacity breaks the other way: the Dufour Yachts 470 2021 carries 66 gallons versus 42 gallons in the Dufour Yachts Lacoste 42 1985. 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 Dufour Yachts 470 2021 is rated for 14 passengers, while the Dufour Yachts Lacoste 42 1985 caps at 12. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Dufour Yachts 470 2021 could be the deciding factor.

Displacement is where these two sailboats genuinely part ways. The Dufour Yachts 470 2021 displaces 29 101 lbs — a 12 566-lb difference over the Dufour Yachts Lacoste 42 1985 at 16 535 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.

Both boats draw a similar depth — 7,4 ft and 7,6 ft respectively. Marina access and anchorage options should be broadly equivalent between the two.

For auxiliary power the Dufour Yachts 470 2021 carries a 60-hp engine against 43 hp on the Dufour Yachts Lacoste 42 1985. Motoring range and ability to punch through a foul current or enter a tight marina under power will favour the more powerful installation.

For extended cruising, water capacity matters: the Dufour Yachts Lacoste 42 1985 carries 106 gallons versus 14 gallons on the Dufour Yachts 470 2021 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.