The Monte Carlo Yachts MCY 66 2020 vs Monte Carlo Yachts MCY 86 2013 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 Monte Carlo Yachts MCY 86 2013 measures 86,0 feet overall (2013), giving it roughly 20,0 additional feet of deck space compared to the Monte Carlo Yachts MCY 66 2020 at 66,0 feet (2020). Weight tells a clearer story for trailering families: the Monte Carlo Yachts MCY 86 2013 tips the scales at 158 733 lbs — 79 367 lbs less than the Monte Carlo Yachts MCY 66 2020 at 79 366 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 1 800 hp, the Monte Carlo Yachts MCY 86 2013 has a 800-hp advantage over the Monte Carlo Yachts MCY 66 2020's 1 000-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Monte Carlo Yachts MCY 86 2013 carries 1 876 gallons versus 925 gallons in the Monte Carlo Yachts MCY 66 2020. 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 Monte Carlo Yachts MCY 86 2013 is rated for 26 passengers, while the Monte Carlo Yachts MCY 66 2020 caps at 20. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Monte Carlo Yachts MCY 86 2013 could be the deciding factor.
Bottom line: Choose the Monte Carlo Yachts MCY 86 2013 if your priority is putting more people on the water — it handles 26 passengers and at 86,0 ft it has the deck room to back that rating up comfortably. The Monte Carlo Yachts MCY 66 2020 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 20 that costs less to run day-to-day.