The Azimut Yachts 55 Fly 2017 vs Azimut Yachts Atlantis 58 2011 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 Azimut Yachts Atlantis 58 2011 measures 62,0 feet overall (2011), giving it roughly 6,6 additional feet of deck space compared to the Azimut Yachts 55 Fly 2017 at 55,4 feet (2017). At 63 934 lbs and 63 934 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
The power gap is worth calling out. Rated to 1 000 hp, the Azimut Yachts Atlantis 58 2011 has a 200-hp advantage over the Azimut Yachts 55 Fly 2017's 800-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Azimut Yachts Atlantis 58 2011 carries 793 gallons versus 676 gallons in the Azimut Yachts 55 Fly 2017. 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 Azimut Yachts Atlantis 58 2011 is rated for 18 passengers, while the Azimut Yachts 55 Fly 2017 caps at 16. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Azimut Yachts Atlantis 58 2011 could be the deciding factor.
Bottom line: Choose the Azimut Yachts Atlantis 58 2011 if your priority is putting more people on the water — it handles 18 passengers and at 62,0 ft it has the deck room to back that rating up comfortably. The Azimut Yachts 55 Fly 2017 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 16 that costs less to run day-to-day.