The Grand Soleil GS 43 2006 vs Grand Soleil GS 45 2010 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 — Grand Soleil GS 43 2006 at 43,6 ft versus Grand Soleil GS 45 2010 at 45,7 ft. Weight tells a clearer story for trailering families: the Grand Soleil GS 45 2010 tips the scales at 21 164 lbs — 1 543 lbs less than the Grand Soleil GS 43 2006 at 19 621 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 — 55 hp for the Grand Soleil GS 43 2006 and 55 hp for the Grand Soleil GS 45 2010. 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 — 61 gal and 61 gal — so range won't be a tiebreaker here.
Both boats are rated for 13 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 — 19 621 lbs for the Grand Soleil GS 43 2006 and 21 164 lbs for the Grand Soleil GS 45 2010. 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 — 7,6 ft and 7,6 ft respectively. Marina access and anchorage options should be broadly equivalent between the two.
The Grand Soleil GS 43 2006 is rigged as a Sloop while the Grand Soleil GS 45 2010 carries fractional_rig_sloop rigging — a meaningful difference in sail handling complexity, upwind performance, and the size of crew you'll need to work the boat comfortably.
Hull speed is rated at 8,4 knots for the Grand Soleil GS 45 2010 and 8,2 knots for the Grand Soleil GS 43 2006.
Bottom line: The Grand Soleil GS 45 2010 at 45,7 ft offers more living space, greater range, and a more substantial offshore capability. The Grand Soleil GS 43 2006 at 43,6 ft is the easier, lower-cost option — simpler to crew and a strong choice for coastal and day sailing.