The Princess Yachts S66 2020 vs Princess Yachts V56 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.
Size is the most obvious dividing line here. The Princess Yachts S66 2020 measures 66,1 feet overall (2020), giving it roughly 10,1 additional feet of deck space compared to the Princess Yachts V56 2010 at 56,0 feet (2010). Weight tells a clearer story for trailering families: the Princess Yachts S66 2020 tips the scales at 75 566 lbs — 7 223 lbs more than the Princess Yachts V56 2010 at 68 343 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 1 200 hp, the Princess Yachts S66 2020 has a 300-hp advantage over the Princess Yachts V56 2010's 900-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Princess Yachts S66 2020 carries 902 gallons versus 584 gallons in the Princess Yachts V56 2010. 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 Princess Yachts S66 2020 is rated for 20 passengers, while the Princess Yachts V56 2010 caps at 17. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Princess Yachts S66 2020 could be the deciding factor.
Bottom line: Choose the Princess Yachts S66 2020 if your priority is putting more people on the water — it handles 20 passengers and at 66,1 ft it has the deck room to back that rating up comfortably. The Princess Yachts V56 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 17 that costs less to run day-to-day.