Matching a modified vee Riviera Yachts 51 Open Flybridge SII 2010 against a deep vee Riviera Yachts 5800 Sport Yacht - IPS 2013 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

Size is the most obvious dividing line here. The Riviera Yachts 5800 Sport Yacht - IPS 2013 measures 63,0 feet overall (2013), giving it roughly 8,3 additional feet of deck space compared to the Riviera Yachts 51 Open Flybridge SII 2010 at 54,7 feet (2010). Weight tells a clearer story for trailering families: the Riviera Yachts 5800 Sport Yacht - IPS 2013 tips the scales at 46 959 lbs — 42 153 lbs less than the Riviera Yachts 51 Open Flybridge SII 2010 at 4 806 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 825 hp, the Riviera Yachts 51 Open Flybridge SII 2010 has a 390-hp advantage over the Riviera Yachts 5800 Sport Yacht - IPS 2013'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 Yachts 51 Open Flybridge SII 2010 carries 977 gallons versus 7 gallons in the Riviera Yachts 5800 Sport Yacht - IPS 2013. 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 Riviera Yachts 5800 Sport Yacht - IPS 2013 is rated for 19 passengers, while the Riviera Yachts 51 Open Flybridge SII 2010 caps at 16. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Riviera Yachts 5800 Sport Yacht - IPS 2013 could be the deciding factor.