The Riviera 54 Open Flybridge 2021 vs Riviera Yachts 5800 Sport Yacht 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.

On paper these two are close siblings in the size department — Riviera 54 Open Flybridge 2021 at 57,9 ft versus Riviera Yachts 5800 Sport Yacht 2011 at 57,6 ft. Weight tells a clearer story for trailering families: the Riviera 54 Open Flybridge 2021 tips the scales at 58 030 lbs — 11 071 lbs more than the Riviera Yachts 5800 Sport Yacht 2011 at 46 959 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 725 hp, the Riviera 54 Open Flybridge 2021 has a 290-hp advantage over the Riviera Yachts 5800 Sport Yacht 2011's 435-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Riviera 54 Open Flybridge 2021 carries 925 gallons versus 7 gallons in the Riviera Yachts 5800 Sport Yacht 2011. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 17 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.